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Finding the Fourth Proportional to 369,813.79, 554,720.69 and 89,331.04

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Solution

The fourth proportional to 369,813.79, 554,720.69 and 89,331.04 is: 133,996.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,813.79 : 554,720.69 = 89,331.04 : x
  2. Step 2: Convert to fraction form
    369,813.79/554,720.69 = 89,331.04/x
  3. Step 3: Cross multiply
    369,813.79x = 554,720.69 × 89,331.04
  4. Step 4: Simplify right side
    369,813.79x = 49,553,776,147.22
  5. Step 5: Solve for x
    x = 49,553,776,147.22/369,813.79
  6. Step 6: Final answer
    x = 133,996.56

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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.