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Finding the Fourth Proportional to 260,417.60, 359,374.56 and 147,240.80

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Solution

The fourth proportional to 260,417.60, 359,374.56 and 147,240.80 is: 203,191.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,417.60 : 359,374.56 = 147,240.80 : x
  2. Step 2: Convert to fraction form
    260,417.60/359,374.56 = 147,240.80/x
  3. Step 3: Cross multiply
    260,417.60x = 359,374.56 × 147,240.80
  4. Step 4: Simplify right side
    260,417.60x = 52,914,597,714.05
  5. Step 5: Solve for x
    x = 52,914,597,714.05/260,417.60
  6. Step 6: Final answer
    x = 203,191.33

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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.