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Finding the Fourth Proportional to 418,550.40, 577,600.80 and 227,564.52

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Solution

The fourth proportional to 418,550.40, 577,600.80 and 227,564.52 is: 314,039.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,550.40 : 577,600.80 = 227,564.52 : x
  2. Step 2: Convert to fraction form
    418,550.40/577,600.80 = 227,564.52/x
  3. Step 3: Cross multiply
    418,550.40x = 577,600.80 × 227,564.52
  4. Step 4: Simplify right side
    418,550.40x = 131,441,448,803.62
  5. Step 5: Solve for x
    x = 131,441,448,803.62/418,550.40
  6. Step 6: Final answer
    x = 314,039.72

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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.