Home / 207,290.09-310,436.85-118,273.72

Finding the Fourth Proportional to 207,290.09, 310,436.85 and 118,273.72

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Solution

The fourth proportional to 207,290.09, 310,436.85 and 118,273.72 is: 177,126.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,290.09 : 310,436.85 = 118,273.72 : x
  2. Step 2: Convert to fraction form
    207,290.09/310,436.85 = 118,273.72/x
  3. Step 3: Cross multiply
    207,290.09x = 310,436.85 × 118,273.72
  4. Step 4: Simplify right side
    207,290.09x = 36,716,521,324.09
  5. Step 5: Solve for x
    x = 36,716,521,324.09/207,290.09
  6. Step 6: Final answer
    x = 177,126.28

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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.