Home / 345,436.46-517,932.14-145,703.42

Finding the Fourth Proportional to 345,436.46, 517,932.14 and 145,703.42

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Solution

The fourth proportional to 345,436.46, 517,932.14 and 145,703.42 is: 218,461.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,436.46 : 517,932.14 = 145,703.42 : x
  2. Step 2: Convert to fraction form
    345,436.46/517,932.14 = 145,703.42/x
  3. Step 3: Cross multiply
    345,436.46x = 517,932.14 × 145,703.42
  4. Step 4: Simplify right side
    345,436.46x = 75,464,480,807.74
  5. Step 5: Solve for x
    x = 75,464,480,807.74/345,436.46
  6. Step 6: Final answer
    x = 218,461.25

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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.