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Finding the Fourth Proportional to 279,316.47, 385,389.53 and 164,599.82

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Solution

The fourth proportional to 279,316.47, 385,389.53 and 164,599.82 is: 227,108.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,316.47 : 385,389.53 = 164,599.82 : x
  2. Step 2: Convert to fraction form
    279,316.47/385,389.53 = 164,599.82/x
  3. Step 3: Cross multiply
    279,316.47x = 385,389.53 × 164,599.82
  4. Step 4: Simplify right side
    279,316.47x = 63,435,044,517.94
  5. Step 5: Solve for x
    x = 63,435,044,517.94/279,316.47
  6. Step 6: Final answer
    x = 227,108.14

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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.