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Finding the Fourth Proportional to 284,605.59, 392,763.84 and 155,551.23

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Solution

The fourth proportional to 284,605.59, 392,763.84 and 155,551.23 is: 214,665.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,605.59 : 392,763.84 = 155,551.23 : x
  2. Step 2: Convert to fraction form
    284,605.59/392,763.84 = 155,551.23/x
  3. Step 3: Cross multiply
    284,605.59x = 392,763.84 × 155,551.23
  4. Step 4: Simplify right side
    284,605.59x = 61,094,898,411.52
  5. Step 5: Solve for x
    x = 61,094,898,411.52/284,605.59
  6. Step 6: Final answer
    x = 214,665.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.