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Finding the Fourth Proportional to 260,514.39, 390,764.28 and 83,032.05

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Solution

The fourth proportional to 260,514.39, 390,764.28 and 83,032.05 is: 124,545.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,514.39 : 390,764.28 = 83,032.05 : x
  2. Step 2: Convert to fraction form
    260,514.39/390,764.28 = 83,032.05/x
  3. Step 3: Cross multiply
    260,514.39x = 390,764.28 × 83,032.05
  4. Step 4: Simplify right side
    260,514.39x = 32,445,959,235.17
  5. Step 5: Solve for x
    x = 32,445,959,235.17/260,514.39
  6. Step 6: Final answer
    x = 124,545.75

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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.