Home / 394,920.90-592,381.35-145,700.10

Finding the Fourth Proportional to 394,920.90, 592,381.35 and 145,700.10

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Solution

The fourth proportional to 394,920.90, 592,381.35 and 145,700.10 is: 218,550.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,920.90 : 592,381.35 = 145,700.10 : x
  2. Step 2: Convert to fraction form
    394,920.90/592,381.35 = 145,700.10/x
  3. Step 3: Cross multiply
    394,920.90x = 592,381.35 × 145,700.10
  4. Step 4: Simplify right side
    394,920.90x = 86,310,021,933.14
  5. Step 5: Solve for x
    x = 86,310,021,933.14/394,920.90
  6. Step 6: Final answer
    x = 218,550.15

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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.