Home / 331,278.52-497,000.40-153,911.20

Finding the Fourth Proportional to 331,278.52, 497,000.40 and 153,911.20

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Solution

The fourth proportional to 331,278.52, 497,000.40 and 153,911.20 is: 230,905.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,278.52 : 497,000.40 = 153,911.20 : x
  2. Step 2: Convert to fraction form
    331,278.52/497,000.40 = 153,911.20/x
  3. Step 3: Cross multiply
    331,278.52x = 497,000.40 × 153,911.20
  4. Step 4: Simplify right side
    331,278.52x = 76,493,927,964.48
  5. Step 5: Solve for x
    x = 76,493,927,964.48/331,278.52
  6. Step 6: Final answer
    x = 230,905.19

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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.