Home / 279,812.07-386,140.67-152,487.56

Finding the Fourth Proportional to 279,812.07, 386,140.67 and 152,487.56

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Solution

The fourth proportional to 279,812.07, 386,140.67 and 152,487.56 is: 210,432.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,812.07 : 386,140.67 = 152,487.56 : x
  2. Step 2: Convert to fraction form
    279,812.07/386,140.67 = 152,487.56/x
  3. Step 3: Cross multiply
    279,812.07x = 386,140.67 × 152,487.56
  4. Step 4: Simplify right side
    279,812.07x = 58,881,649,359.81
  5. Step 5: Solve for x
    x = 58,881,649,359.81/279,812.07
  6. Step 6: Final answer
    x = 210,432.84

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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.