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Finding the Fourth Proportional to 635,856.80, 953,781.42 and 162,541.40

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Solution

The fourth proportional to 635,856.80, 953,781.42 and 162,541.40 is: 243,811.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,856.80 : 953,781.42 = 162,541.40 : x
  2. Step 2: Convert to fraction form
    635,856.80/953,781.42 = 162,541.40/x
  3. Step 3: Cross multiply
    635,856.80x = 953,781.42 × 162,541.40
  4. Step 4: Simplify right side
    635,856.80x = 155,028,967,300.79
  5. Step 5: Solve for x
    x = 155,028,967,300.79/635,856.80
  6. Step 6: Final answer
    x = 243,811.13

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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.