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Finding the Fourth Proportional to 418,272.59, 577,219.35 and 227,287.01

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Solution

The fourth proportional to 418,272.59, 577,219.35 and 227,287.01 is: 313,657.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,272.59 : 577,219.35 = 227,287.01 : x
  2. Step 2: Convert to fraction form
    418,272.59/577,219.35 = 227,287.01/x
  3. Step 3: Cross multiply
    418,272.59x = 577,219.35 × 227,287.01
  4. Step 4: Simplify right side
    418,272.59x = 131,194,459,039.21
  5. Step 5: Solve for x
    x = 131,194,459,039.21/418,272.59
  6. Step 6: Final answer
    x = 313,657.80

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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.