Home / 279,758.09-386,055.33-152,434.64

Finding the Fourth Proportional to 279,758.09, 386,055.33 and 152,434.64

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Solution

The fourth proportional to 279,758.09, 386,055.33 and 152,434.64 is: 210,353.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,758.09 : 386,055.33 = 152,434.64 : x
  2. Step 2: Convert to fraction form
    279,758.09/386,055.33 = 152,434.64/x
  3. Step 3: Cross multiply
    279,758.09x = 386,055.33 × 152,434.64
  4. Step 4: Simplify right side
    279,758.09x = 58,848,205,248.63
  5. Step 5: Solve for x
    x = 58,848,205,248.63/279,758.09
  6. Step 6: Final answer
    x = 210,353.90

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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.