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Finding the Fourth Proportional to 284,332.48, 392,324.16 and 171,162.88

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Solution

The fourth proportional to 284,332.48, 392,324.16 and 171,162.88 is: 236,171.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,332.48 : 392,324.16 = 171,162.88 : x
  2. Step 2: Convert to fraction form
    284,332.48/392,324.16 = 171,162.88/x
  3. Step 3: Cross multiply
    284,332.48x = 392,324.16 × 171,162.88
  4. Step 4: Simplify right side
    284,332.48x = 67,151,333,119.18
  5. Step 5: Solve for x
    x = 67,151,333,119.18/284,332.48
  6. Step 6: Final answer
    x = 236,171.87

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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.