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Finding the Fourth Proportional to 316,670.92, 437,006.52 and 171,478.28

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Solution

The fourth proportional to 316,670.92, 437,006.52 and 171,478.28 is: 236,640.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,670.92 : 437,006.52 = 171,478.28 : x
  2. Step 2: Convert to fraction form
    316,670.92/437,006.52 = 171,478.28/x
  3. Step 3: Cross multiply
    316,670.92x = 437,006.52 × 171,478.28
  4. Step 4: Simplify right side
    316,670.92x = 74,937,126,398.39
  5. Step 5: Solve for x
    x = 74,937,126,398.39/316,670.92
  6. Step 6: Final answer
    x = 236,640.38

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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.