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Finding the Fourth Proportional to 260,045.60, 390,068.40 and 73,057.10

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Solution

The fourth proportional to 260,045.60, 390,068.40 and 73,057.10 is: 109,585.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,045.60 : 390,068.40 = 73,057.10 : x
  2. Step 2: Convert to fraction form
    260,045.60/390,068.40 = 73,057.10/x
  3. Step 3: Cross multiply
    260,045.60x = 390,068.40 × 73,057.10
  4. Step 4: Simplify right side
    260,045.60x = 28,497,266,105.64
  5. Step 5: Solve for x
    x = 28,497,266,105.64/260,045.60
  6. Step 6: Final answer
    x = 109,585.65

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Similar ratio
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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.