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Finding the Fourth Proportional to 296,637.60, 444,913.20 and 86,253.60

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Solution

The fourth proportional to 296,637.60, 444,913.20 and 86,253.60 is: 129,367.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,637.60 : 444,913.20 = 86,253.60 : x
  2. Step 2: Convert to fraction form
    296,637.60/444,913.20 = 86,253.60/x
  3. Step 3: Cross multiply
    296,637.60x = 444,913.20 × 86,253.60
  4. Step 4: Simplify right side
    296,637.60x = 38,375,365,187.52
  5. Step 5: Solve for x
    x = 38,375,365,187.52/296,637.60
  6. Step 6: Final answer
    x = 129,367.84

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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.