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Finding the Fourth Proportional to 284,377.69, 392,443.55 and 157,055.41

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Solution

The fourth proportional to 284,377.69, 392,443.55 and 157,055.41 is: 216,737.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,377.69 : 392,443.55 = 157,055.41 : x
  2. Step 2: Convert to fraction form
    284,377.69/392,443.55 = 157,055.41/x
  3. Step 3: Cross multiply
    284,377.69x = 392,443.55 × 157,055.41
  4. Step 4: Simplify right side
    284,377.69x = 61,635,382,647.11
  5. Step 5: Solve for x
    x = 61,635,382,647.11/284,377.69
  6. Step 6: Final answer
    x = 216,737.76

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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.