Home / 260,559.18-390,779.98-132,345.63

Finding the Fourth Proportional to 260,559.18, 390,779.98 and 132,345.63

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Solution

The fourth proportional to 260,559.18, 390,779.98 and 132,345.63 is: 198,488.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,559.18 : 390,779.98 = 132,345.63 : x
  2. Step 2: Convert to fraction form
    260,559.18/390,779.98 = 132,345.63/x
  3. Step 3: Cross multiply
    260,559.18x = 390,779.98 × 132,345.63
  4. Step 4: Simplify right side
    260,559.18x = 51,718,022,313.62
  5. Step 5: Solve for x
    x = 51,718,022,313.62/260,559.18
  6. Step 6: Final answer
    x = 198,488.58

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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.