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Finding the Fourth Proportional to 255,700.40, 383,896.20 and 162,388.40

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Solution

The fourth proportional to 255,700.40, 383,896.20 and 162,388.40 is: 243,802.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,700.40 : 383,896.20 = 162,388.40 : x
  2. Step 2: Convert to fraction form
    255,700.40/383,896.20 = 162,388.40/x
  3. Step 3: Cross multiply
    255,700.40x = 383,896.20 × 162,388.40
  4. Step 4: Simplify right side
    255,700.40x = 62,340,289,684.08
  5. Step 5: Solve for x
    x = 62,340,289,684.08/255,700.40
  6. Step 6: Final answer
    x = 243,802.08

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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.