Home / 218,905.48-302,087.28-123,443.02

Finding the Fourth Proportional to 218,905.48, 302,087.28 and 123,443.02

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Solution

The fourth proportional to 218,905.48, 302,087.28 and 123,443.02 is: 170,350.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,905.48 : 302,087.28 = 123,443.02 : x
  2. Step 2: Convert to fraction form
    218,905.48/302,087.28 = 123,443.02/x
  3. Step 3: Cross multiply
    218,905.48x = 302,087.28 × 123,443.02
  4. Step 4: Simplify right side
    218,905.48x = 37,290,566,146.79
  5. Step 5: Solve for x
    x = 37,290,566,146.79/218,905.48
  6. Step 6: Final answer
    x = 170,350.08

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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.