Home / 279,529.13-385,756.53-158,659.11

Finding the Fourth Proportional to 279,529.13, 385,756.53 and 158,659.11

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Solution

The fourth proportional to 279,529.13, 385,756.53 and 158,659.11 is: 218,953.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,529.13 : 385,756.53 = 158,659.11 : x
  2. Step 2: Convert to fraction form
    279,529.13/385,756.53 = 158,659.11/x
  3. Step 3: Cross multiply
    279,529.13x = 385,756.53 × 158,659.11
  4. Step 4: Simplify right side
    279,529.13x = 61,203,787,726.49
  5. Step 5: Solve for x
    x = 61,203,787,726.49/279,529.13
  6. Step 6: Final answer
    x = 218,953.17

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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.