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Finding the Fourth Proportional to 395,750.36, 593,681.03 and 129,531.98

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Solution

The fourth proportional to 395,750.36, 593,681.03 and 129,531.98 is: 194,316.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,750.36 : 593,681.03 = 129,531.98 : x
  2. Step 2: Convert to fraction form
    395,750.36/593,681.03 = 129,531.98/x
  3. Step 3: Cross multiply
    395,750.36x = 593,681.03 × 129,531.98
  4. Step 4: Simplify right side
    395,750.36x = 76,900,679,304.34
  5. Step 5: Solve for x
    x = 76,900,679,304.34/395,750.36
  6. Step 6: Final answer
    x = 194,316.13

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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.