Home / 279,845.36-386,194.80-152,529.20

Finding the Fourth Proportional to 279,845.36, 386,194.80 and 152,529.20

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Solution

The fourth proportional to 279,845.36, 386,194.80 and 152,529.20 is: 210,494.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,845.36 : 386,194.80 = 152,529.20 : x
  2. Step 2: Convert to fraction form
    279,845.36/386,194.80 = 152,529.20/x
  3. Step 3: Cross multiply
    279,845.36x = 386,194.80 × 152,529.20
  4. Step 4: Simplify right side
    279,845.36x = 58,905,983,888.16
  5. Step 5: Solve for x
    x = 58,905,983,888.16/279,845.36
  6. Step 6: Final answer
    x = 210,494.77

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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.