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Finding the Fourth Proportional to 279,089.04, 385,096.15 and 164,390.52

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Solution

The fourth proportional to 279,089.04, 385,096.15 and 164,390.52 is: 226,831.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,089.04 : 385,096.15 = 164,390.52 : x
  2. Step 2: Convert to fraction form
    279,089.04/385,096.15 = 164,390.52/x
  3. Step 3: Cross multiply
    279,089.04x = 385,096.15 × 164,390.52
  4. Step 4: Simplify right side
    279,089.04x = 63,306,156,348.50
  5. Step 5: Solve for x
    x = 63,306,156,348.50/279,089.04
  6. Step 6: Final answer
    x = 226,831.40

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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.