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Finding the Fourth Proportional to 277,280.10, 415,920.15 and 220,199.40

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Solution

The fourth proportional to 277,280.10, 415,920.15 and 220,199.40 is: 330,299.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,280.10 : 415,920.15 = 220,199.40 : x
  2. Step 2: Convert to fraction form
    277,280.10/415,920.15 = 220,199.40/x
  3. Step 3: Cross multiply
    277,280.10x = 415,920.15 × 220,199.40
  4. Step 4: Simplify right side
    277,280.10x = 91,585,367,477.91
  5. Step 5: Solve for x
    x = 91,585,367,477.91/277,280.10
  6. Step 6: Final answer
    x = 330,299.10

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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.