Home / 279,720.47-386,014.29-152,396.07

Finding the Fourth Proportional to 279,720.47, 386,014.29 and 152,396.07

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Solution

The fourth proportional to 279,720.47, 386,014.29 and 152,396.07 is: 210,306.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,720.47 : 386,014.29 = 152,396.07 : x
  2. Step 2: Convert to fraction form
    279,720.47/386,014.29 = 152,396.07/x
  3. Step 3: Cross multiply
    279,720.47x = 386,014.29 × 152,396.07
  4. Step 4: Simplify right side
    279,720.47x = 58,827,060,759.84
  5. Step 5: Solve for x
    x = 58,827,060,759.84/279,720.47
  6. Step 6: Final answer
    x = 210,306.60

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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.