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Finding the Fourth Proportional to 390,160.13, 585,240.19 and 94,672.13

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Solution

The fourth proportional to 390,160.13, 585,240.19 and 94,672.13 is: 142,008.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,160.13 : 585,240.19 = 94,672.13 : x
  2. Step 2: Convert to fraction form
    390,160.13/585,240.19 = 94,672.13/x
  3. Step 3: Cross multiply
    390,160.13x = 585,240.19 × 94,672.13
  4. Step 4: Simplify right side
    390,160.13x = 55,405,932,186.02
  5. Step 5: Solve for x
    x = 55,405,932,186.02/390,160.13
  6. Step 6: Final answer
    x = 142,008.19

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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.