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Finding the Fourth Proportional to 395,030, 592,545 and 99,542

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Solution

The fourth proportional to 395,030, 592,545 and 99,542 is: 149,313

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,030 : 592,545 = 99,542 : x
  2. Step 2: Convert to fraction form
    395,030/592,545 = 99,542/x
  3. Step 3: Cross multiply
    395,030x = 592,545 × 99,542
  4. Step 4: Simplify right side
    395,030x = 58,983,114,390
  5. Step 5: Solve for x
    x = 58,983,114,390/395,030
  6. Step 6: Final answer
    x = 149,313

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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.