Home / 356,253.36-534,740.12-315,990.85

Finding the Fourth Proportional to 356,253.36, 534,740.12 and 315,990.85

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Solution

The fourth proportional to 356,253.36, 534,740.12 and 315,990.85 is: 474,305.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,253.36 : 534,740.12 = 315,990.85 : x
  2. Step 2: Convert to fraction form
    356,253.36/534,740.12 = 315,990.85/x
  3. Step 3: Cross multiply
    356,253.36x = 534,740.12 × 315,990.85
  4. Step 4: Simplify right side
    356,253.36x = 168,972,985,047.90
  5. Step 5: Solve for x
    x = 168,972,985,047.90/356,253.36
  6. Step 6: Final answer
    x = 474,305.66

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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.