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Finding the Fourth Proportional to 255,920,477.20, 383,880,715.80 and 227,702,928.40

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Solution

The fourth proportional to 255,920,477.20, 383,880,715.80 and 227,702,928.40 is: 341,554,392.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,920,477.20 : 383,880,715.80 = 227,702,928.40 : x
  2. Step 2: Convert to fraction form
    255,920,477.20/383,880,715.80 = 227,702,928.40/x
  3. Step 3: Cross multiply
    255,920,477.20x = 383,880,715.80 × 227,702,928.40
  4. Step 4: Simplify right side
    255,920,477.20x = 87,410,763,143,948,160
  5. Step 5: Solve for x
    x = 87,410,763,143,948,160/255,920,477.20
  6. Step 6: Final answer
    x = 341,554,392.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.