Home / 218,848.52-302,034.17-128,280.57

Finding the Fourth Proportional to 218,848.52, 302,034.17 and 128,280.57

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Solution

The fourth proportional to 218,848.52, 302,034.17 and 128,280.57 is: 177,040.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,848.52 : 302,034.17 = 128,280.57 : x
  2. Step 2: Convert to fraction form
    218,848.52/302,034.17 = 128,280.57/x
  3. Step 3: Cross multiply
    218,848.52x = 302,034.17 × 128,280.57
  4. Step 4: Simplify right side
    218,848.52x = 38,745,116,619.71
  5. Step 5: Solve for x
    x = 38,745,116,619.71/218,848.52
  6. Step 6: Final answer
    x = 177,040.80

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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.