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Finding the Fourth Proportional to 315,689.78, 473,531.42 and 182,485.28

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Solution

The fourth proportional to 315,689.78, 473,531.42 and 182,485.28 is: 273,726.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,689.78 : 473,531.42 = 182,485.28 : x
  2. Step 2: Convert to fraction form
    315,689.78/473,531.42 = 182,485.28/x
  3. Step 3: Cross multiply
    315,689.78x = 473,531.42 × 182,485.28
  4. Step 4: Simplify right side
    315,689.78x = 86,412,510,487.41
  5. Step 5: Solve for x
    x = 86,412,510,487.41/315,689.78
  6. Step 6: Final answer
    x = 273,726.04

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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.