Home / 418,370.62-577,348-227,385.18

Finding the Fourth Proportional to 418,370.62, 577,348 and 227,385.18

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Solution

The fourth proportional to 418,370.62, 577,348 and 227,385.18 is: 313,789.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,370.62 : 577,348 = 227,385.18 : x
  2. Step 2: Convert to fraction form
    418,370.62/577,348 = 227,385.18/x
  3. Step 3: Cross multiply
    418,370.62x = 577,348 × 227,385.18
  4. Step 4: Simplify right side
    418,370.62x = 131,280,378,902.64
  5. Step 5: Solve for x
    x = 131,280,378,902.64/418,370.62
  6. Step 6: Final answer
    x = 313,789.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.