Home / 272,543.78-376,121.28-151,690.16

Finding the Fourth Proportional to 272,543.78, 376,121.28 and 151,690.16

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Solution

The fourth proportional to 272,543.78, 376,121.28 and 151,690.16 is: 209,338.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,543.78 : 376,121.28 = 151,690.16 : x
  2. Step 2: Convert to fraction form
    272,543.78/376,121.28 = 151,690.16/x
  3. Step 3: Cross multiply
    272,543.78x = 376,121.28 × 151,690.16
  4. Step 4: Simplify right side
    272,543.78x = 57,053,897,142.60
  5. Step 5: Solve for x
    x = 57,053,897,142.60/272,543.78
  6. Step 6: Final answer
    x = 209,338.47

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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.