Home / 209,063.72-288,511.02-113,572.28

Finding the Fourth Proportional to 209,063.72, 288,511.02 and 113,572.28

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Solution

The fourth proportional to 209,063.72, 288,511.02 and 113,572.28 is: 156,731.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,063.72 : 288,511.02 = 113,572.28 : x
  2. Step 2: Convert to fraction form
    209,063.72/288,511.02 = 113,572.28/x
  3. Step 3: Cross multiply
    209,063.72x = 288,511.02 × 113,572.28
  4. Step 4: Simplify right side
    209,063.72x = 32,766,854,346.53
  5. Step 5: Solve for x
    x = 32,766,854,346.53/209,063.72
  6. Step 6: Final answer
    x = 156,731.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.