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Finding the Fourth Proportional to 331,362.70, 497,108.85 and 141,822.70

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Solution

The fourth proportional to 331,362.70, 497,108.85 and 141,822.70 is: 212,761.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,362.70 : 497,108.85 = 141,822.70 : x
  2. Step 2: Convert to fraction form
    331,362.70/497,108.85 = 141,822.70/x
  3. Step 3: Cross multiply
    331,362.70x = 497,108.85 × 141,822.70
  4. Step 4: Simplify right side
    331,362.70x = 70,501,319,300.90
  5. Step 5: Solve for x
    x = 70,501,319,300.90/331,362.70
  6. Step 6: Final answer
    x = 212,761.78

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1.5x scale

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.