Home / 220,312.76-304,030.68-129,668.04

Finding the Fourth Proportional to 220,312.76, 304,030.68 and 129,668.04

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Solution

The fourth proportional to 220,312.76, 304,030.68 and 129,668.04 is: 178,941.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,312.76 : 304,030.68 = 129,668.04 : x
  2. Step 2: Convert to fraction form
    220,312.76/304,030.68 = 129,668.04/x
  3. Step 3: Cross multiply
    220,312.76x = 304,030.68 × 129,668.04
  4. Step 4: Simplify right side
    220,312.76x = 39,423,062,375.47
  5. Step 5: Solve for x
    x = 39,423,062,375.47/220,312.76
  6. Step 6: Final answer
    x = 178,941.35

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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.