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Finding the Fourth Proportional to 260,114.59, 390,178.82 and 91,596.62

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Solution

The fourth proportional to 260,114.59, 390,178.82 and 91,596.62 is: 137,397.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,114.59 : 390,178.82 = 91,596.62 : x
  2. Step 2: Convert to fraction form
    260,114.59/390,178.82 = 91,596.62/x
  3. Step 3: Cross multiply
    260,114.59x = 390,178.82 × 91,596.62
  4. Step 4: Simplify right side
    260,114.59x = 35,739,062,312.03
  5. Step 5: Solve for x
    x = 35,739,062,312.03/260,114.59
  6. Step 6: Final answer
    x = 137,397.38

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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.