Home / 218,888.34-302,070.51-123,395.04

Finding the Fourth Proportional to 218,888.34, 302,070.51 and 123,395.04

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Solution

The fourth proportional to 218,888.34, 302,070.51 and 123,395.04 is: 170,287.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,888.34 : 302,070.51 = 123,395.04 : x
  2. Step 2: Convert to fraction form
    218,888.34/302,070.51 = 123,395.04/x
  3. Step 3: Cross multiply
    218,888.34x = 302,070.51 × 123,395.04
  4. Step 4: Simplify right side
    218,888.34x = 37,274,002,664.27
  5. Step 5: Solve for x
    x = 37,274,002,664.27/218,888.34
  6. Step 6: Final answer
    x = 170,287.75

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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.