Home / 237,686.38-328,007.48-128,790.63

Finding the Fourth Proportional to 237,686.38, 328,007.48 and 128,790.63

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Solution

The fourth proportional to 237,686.38, 328,007.48 and 128,790.63 is: 177,731.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,686.38 : 328,007.48 = 128,790.63 : x
  2. Step 2: Convert to fraction form
    237,686.38/328,007.48 = 128,790.63/x
  3. Step 3: Cross multiply
    237,686.38x = 328,007.48 × 128,790.63
  4. Step 4: Simplify right side
    237,686.38x = 42,244,291,750.92
  5. Step 5: Solve for x
    x = 42,244,291,750.92/237,686.38
  6. Step 6: Final answer
    x = 177,731.23

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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.