Home / 237,720.89-328,057.40-130,288.61

Finding the Fourth Proportional to 237,720.89, 328,057.40 and 130,288.61

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Solution

The fourth proportional to 237,720.89, 328,057.40 and 130,288.61 is: 179,799.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,720.89 : 328,057.40 = 130,288.61 : x
  2. Step 2: Convert to fraction form
    237,720.89/328,057.40 = 130,288.61/x
  3. Step 3: Cross multiply
    237,720.89x = 328,057.40 × 130,288.61
  4. Step 4: Simplify right side
    237,720.89x = 42,742,142,646.21
  5. Step 5: Solve for x
    x = 42,742,142,646.21/237,720.89
  6. Step 6: Final answer
    x = 179,799.69

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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.