Home / 207,279.02-310,918.46-74,151.20

Finding the Fourth Proportional to 207,279.02, 310,918.46 and 74,151.20

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Solution

The fourth proportional to 207,279.02, 310,918.46 and 74,151.20 is: 111,226.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,279.02 : 310,918.46 = 74,151.20 : x
  2. Step 2: Convert to fraction form
    207,279.02/310,918.46 = 74,151.20/x
  3. Step 3: Cross multiply
    207,279.02x = 310,918.46 × 74,151.20
  4. Step 4: Simplify right side
    207,279.02x = 23,054,976,911.15
  5. Step 5: Solve for x
    x = 23,054,976,911.15/207,279.02
  6. Step 6: Final answer
    x = 111,226.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.