Home / 279,831.18-386,167.50-152,506.74

Finding the Fourth Proportional to 279,831.18, 386,167.50 and 152,506.74

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Solution

The fourth proportional to 279,831.18, 386,167.50 and 152,506.74 is: 210,459.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,831.18 : 386,167.50 = 152,506.74 : x
  2. Step 2: Convert to fraction form
    279,831.18/386,167.50 = 152,506.74/x
  3. Step 3: Cross multiply
    279,831.18x = 386,167.50 × 152,506.74
  4. Step 4: Simplify right side
    279,831.18x = 58,893,146,518.95
  5. Step 5: Solve for x
    x = 58,893,146,518.95/279,831.18
  6. Step 6: Final answer
    x = 210,459.56

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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.