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Finding the Fourth Proportional to 439,594.59, 659,384.65 and 140,071.12

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Solution

The fourth proportional to 439,594.59, 659,384.65 and 140,071.12 is: 210,104.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,594.59 : 659,384.65 = 140,071.12 : x
  2. Step 2: Convert to fraction form
    439,594.59/659,384.65 = 140,071.12/x
  3. Step 3: Cross multiply
    439,594.59x = 659,384.65 × 140,071.12
  4. Step 4: Simplify right side
    439,594.59x = 92,360,748,671.97
  5. Step 5: Solve for x
    x = 92,360,748,671.97/439,594.59
  6. Step 6: Final answer
    x = 210,104.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.