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Finding the Fourth Proportional to 288,657.60, 432,330.30 and 148,252.20

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Solution

The fourth proportional to 288,657.60, 432,330.30 and 148,252.20 is: 222,041.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,657.60 : 432,330.30 = 148,252.20 : x
  2. Step 2: Convert to fraction form
    288,657.60/432,330.30 = 148,252.20/x
  3. Step 3: Cross multiply
    288,657.60x = 432,330.30 × 148,252.20
  4. Step 4: Simplify right side
    288,657.60x = 64,093,918,101.66
  5. Step 5: Solve for x
    x = 64,093,918,101.66/288,657.60
  6. Step 6: Final answer
    x = 222,041.33

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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.