Home / 237,979.49-328,409.78-129,083.55

Finding the Fourth Proportional to 237,979.49, 328,409.78 and 129,083.55

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Solution

The fourth proportional to 237,979.49, 328,409.78 and 129,083.55 is: 178,134.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,979.49 : 328,409.78 = 129,083.55 : x
  2. Step 2: Convert to fraction form
    237,979.49/328,409.78 = 129,083.55/x
  3. Step 3: Cross multiply
    237,979.49x = 328,409.78 × 129,083.55
  4. Step 4: Simplify right side
    237,979.49x = 42,392,298,615.07
  5. Step 5: Solve for x
    x = 42,392,298,615.07/237,979.49
  6. Step 6: Final answer
    x = 178,134.26

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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.