Home / 331,445.36-497,089.20-91,553.95

Finding the Fourth Proportional to 331,445.36, 497,089.20 and 91,553.95

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Solution

The fourth proportional to 331,445.36, 497,089.20 and 91,553.95 is: 137,309.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,445.36 : 497,089.20 = 91,553.95 : x
  2. Step 2: Convert to fraction form
    331,445.36/497,089.20 = 91,553.95/x
  3. Step 3: Cross multiply
    331,445.36x = 497,089.20 × 91,553.95
  4. Step 4: Simplify right side
    331,445.36x = 45,510,479,762.34
  5. Step 5: Solve for x
    x = 45,510,479,762.34/331,445.36
  6. Step 6: Final answer
    x = 137,309.15

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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.