Home / 220,269.95-303,966.62-129,631.25

Finding the Fourth Proportional to 220,269.95, 303,966.62 and 129,631.25

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Solution

The fourth proportional to 220,269.95, 303,966.62 and 129,631.25 is: 178,887.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,269.95 : 303,966.62 = 129,631.25 : x
  2. Step 2: Convert to fraction form
    220,269.95/303,966.62 = 129,631.25/x
  3. Step 3: Cross multiply
    220,269.95x = 303,966.62 × 129,631.25
  4. Step 4: Simplify right side
    220,269.95x = 39,403,574,235.93
  5. Step 5: Solve for x
    x = 39,403,574,235.93/220,269.95
  6. Step 6: Final answer
    x = 178,887.65

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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.