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Finding the Fourth Proportional to 284,432.80, 426,728.32 and 124,480.24

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Solution

The fourth proportional to 284,432.80, 426,728.32 and 124,480.24 is: 186,754.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,432.80 : 426,728.32 = 124,480.24 : x
  2. Step 2: Convert to fraction form
    284,432.80/426,728.32 = 124,480.24/x
  3. Step 3: Cross multiply
    284,432.80x = 426,728.32 × 124,480.24
  4. Step 4: Simplify right side
    284,432.80x = 53,119,243,688.40
  5. Step 5: Solve for x
    x = 53,119,243,688.40/284,432.80
  6. Step 6: Final answer
    x = 186,754.99

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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.