Home / 260,555.90-390,774.80-132,342.21

Finding the Fourth Proportional to 260,555.90, 390,774.80 and 132,342.21

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Solution

The fourth proportional to 260,555.90, 390,774.80 and 132,342.21 is: 198,483.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,555.90 : 390,774.80 = 132,342.21 : x
  2. Step 2: Convert to fraction form
    260,555.90/390,774.80 = 132,342.21/x
  3. Step 3: Cross multiply
    260,555.90x = 390,774.80 × 132,342.21
  4. Step 4: Simplify right side
    260,555.90x = 51,716,000,975.16
  5. Step 5: Solve for x
    x = 51,716,000,975.16/260,555.90
  6. Step 6: Final answer
    x = 198,483.33

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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.