Home / 215,437.92-297,260.82-130,505.64

Finding the Fourth Proportional to 215,437.92, 297,260.82 and 130,505.64

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Solution

The fourth proportional to 215,437.92, 297,260.82 and 130,505.64 is: 180,071.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,437.92 : 297,260.82 = 130,505.64 : x
  2. Step 2: Convert to fraction form
    215,437.92/297,260.82 = 130,505.64/x
  3. Step 3: Cross multiply
    215,437.92x = 297,260.82 × 130,505.64
  4. Step 4: Simplify right side
    215,437.92x = 38,794,213,561.02
  5. Step 5: Solve for x
    x = 38,794,213,561.02/215,437.92
  6. Step 6: Final answer
    x = 180,071.43

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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.