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Finding the Fourth Proportional to 450,129.60, 675,194.40 and 291,499.20

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Solution

The fourth proportional to 450,129.60, 675,194.40 and 291,499.20 is: 437,248.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,129.60 : 675,194.40 = 291,499.20 : x
  2. Step 2: Convert to fraction form
    450,129.60/675,194.40 = 291,499.20/x
  3. Step 3: Cross multiply
    450,129.60x = 675,194.40 × 291,499.20
  4. Step 4: Simplify right side
    450,129.60x = 196,818,627,444.48
  5. Step 5: Solve for x
    x = 196,818,627,444.48/450,129.60
  6. Step 6: Final answer
    x = 437,248.80

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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.