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Finding the Fourth Proportional to 279,050.76, 385,094.88 and 151,727.22

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Solution

The fourth proportional to 279,050.76, 385,094.88 and 151,727.22 is: 209,386.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,050.76 : 385,094.88 = 151,727.22 : x
  2. Step 2: Convert to fraction form
    279,050.76/385,094.88 = 151,727.22/x
  3. Step 3: Cross multiply
    279,050.76x = 385,094.88 × 151,727.22
  4. Step 4: Simplify right side
    279,050.76x = 58,429,375,578.63
  5. Step 5: Solve for x
    x = 58,429,375,578.63/279,050.76
  6. Step 6: Final answer
    x = 209,386.19

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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.