Home / 279,723.48-386,018.43-152,399.07

Finding the Fourth Proportional to 279,723.48, 386,018.43 and 152,399.07

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Solution

The fourth proportional to 279,723.48, 386,018.43 and 152,399.07 is: 210,310.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,723.48 : 386,018.43 = 152,399.07 : x
  2. Step 2: Convert to fraction form
    279,723.48/386,018.43 = 152,399.07/x
  3. Step 3: Cross multiply
    279,723.48x = 386,018.43 × 152,399.07
  4. Step 4: Simplify right side
    279,723.48x = 58,828,849,734.86
  5. Step 5: Solve for x
    x = 58,828,849,734.86/279,723.48
  6. Step 6: Final answer
    x = 210,310.73

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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.