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Finding the Fourth Proportional to 418,471.30, 577,483.59 and 227,489.50

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Solution

The fourth proportional to 418,471.30, 577,483.59 and 227,489.50 is: 313,931.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,471.30 : 577,483.59 = 227,489.50 : x
  2. Step 2: Convert to fraction form
    418,471.30/577,483.59 = 227,489.50/x
  3. Step 3: Cross multiply
    418,471.30x = 577,483.59 × 227,489.50
  4. Step 4: Simplify right side
    418,471.30x = 131,371,453,147.31
  5. Step 5: Solve for x
    x = 131,371,453,147.31/418,471.30
  6. Step 6: Final answer
    x = 313,931.81

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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.