Home / 279,814.95-386,133.33-152,487.81

Finding the Fourth Proportional to 279,814.95, 386,133.33 and 152,487.81

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Solution

The fourth proportional to 279,814.95, 386,133.33 and 152,487.81 is: 210,427.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,814.95 : 386,133.33 = 152,487.81 : x
  2. Step 2: Convert to fraction form
    279,814.95/386,133.33 = 152,487.81/x
  3. Step 3: Cross multiply
    279,814.95x = 386,133.33 × 152,487.81
  4. Step 4: Simplify right side
    279,814.95x = 58,880,625,859.71
  5. Step 5: Solve for x
    x = 58,880,625,859.71/279,814.95
  6. Step 6: Final answer
    x = 210,427.02

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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.