Home / 279,726.90-386,027.55-152,402.46

Finding the Fourth Proportional to 279,726.90, 386,027.55 and 152,402.46

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Solution

The fourth proportional to 279,726.90, 386,027.55 and 152,402.46 is: 210,317.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,726.90 : 386,027.55 = 152,402.46 : x
  2. Step 2: Convert to fraction form
    279,726.90/386,027.55 = 152,402.46/x
  3. Step 3: Cross multiply
    279,726.90x = 386,027.55 × 152,402.46
  4. Step 4: Simplify right side
    279,726.90x = 58,831,548,247.77
  5. Step 5: Solve for x
    x = 58,831,548,247.77/279,726.90
  6. Step 6: Final answer
    x = 210,317.81

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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.