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Finding the Fourth Proportional to 260,567.59, 390,866.87 and 100,644.73

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Solution

The fourth proportional to 260,567.59, 390,866.87 and 100,644.73 is: 150,973.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,567.59 : 390,866.87 = 100,644.73 : x
  2. Step 2: Convert to fraction form
    260,567.59/390,866.87 = 100,644.73/x
  3. Step 3: Cross multiply
    260,567.59x = 390,866.87 × 100,644.73
  4. Step 4: Simplify right side
    260,567.59x = 39,338,690,597.10
  5. Step 5: Solve for x
    x = 39,338,690,597.10/260,567.59
  6. Step 6: Final answer
    x = 150,973.08

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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.