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Finding the Fourth Proportional to 440,591.60, 608,008.88 and 239,386.16

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Solution

The fourth proportional to 440,591.60, 608,008.88 and 239,386.16 is: 330,348.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,591.60 : 608,008.88 = 239,386.16 : x
  2. Step 2: Convert to fraction form
    440,591.60/608,008.88 = 239,386.16/x
  3. Step 3: Cross multiply
    440,591.60x = 608,008.88 × 239,386.16
  4. Step 4: Simplify right side
    440,591.60x = 145,548,911,029.10
  5. Step 5: Solve for x
    x = 145,548,911,029.10/440,591.60
  6. Step 6: Final answer
    x = 330,348.81

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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.