Home / 279,727.90-386,028.93-152,403.46

Finding the Fourth Proportional to 279,727.90, 386,028.93 and 152,403.46

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Solution

The fourth proportional to 279,727.90, 386,028.93 and 152,403.46 is: 210,319.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,727.90 : 386,028.93 = 152,403.46 : x
  2. Step 2: Convert to fraction form
    279,727.90/386,028.93 = 152,403.46/x
  3. Step 3: Cross multiply
    279,727.90x = 386,028.93 × 152,403.46
  4. Step 4: Simplify right side
    279,727.90x = 58,832,144,592.10
  5. Step 5: Solve for x
    x = 58,832,144,592.10/279,727.90
  6. Step 6: Final answer
    x = 210,319.19

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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.