Home / 279,142.22-385,215.18-151,819.94

Finding the Fourth Proportional to 279,142.22, 385,215.18 and 151,819.94

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Solution

The fourth proportional to 279,142.22, 385,215.18 and 151,819.94 is: 209,510.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,142.22 : 385,215.18 = 151,819.94 : x
  2. Step 2: Convert to fraction form
    279,142.22/385,215.18 = 151,819.94/x
  3. Step 3: Cross multiply
    279,142.22x = 385,215.18 × 151,819.94
  4. Step 4: Simplify right side
    279,142.22x = 58,483,343,588.61
  5. Step 5: Solve for x
    x = 58,483,343,588.61/279,142.22
  6. Step 6: Final answer
    x = 209,510.92

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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.