Home / 417,245.90-625,981.18-214,731.66

Finding the Fourth Proportional to 417,245.90, 625,981.18 and 214,731.66

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Solution

The fourth proportional to 417,245.90, 625,981.18 and 214,731.66 is: 322,155.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,245.90 : 625,981.18 = 214,731.66 : x
  2. Step 2: Convert to fraction form
    417,245.90/625,981.18 = 214,731.66/x
  3. Step 3: Cross multiply
    417,245.90x = 625,981.18 × 214,731.66
  4. Step 4: Simplify right side
    417,245.90x = 134,417,977,910.16
  5. Step 5: Solve for x
    x = 134,417,977,910.16/417,245.90
  6. Step 6: Final answer
    x = 322,155.30

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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.