Home / 279,348.32-385,509.38-158,494.70

Finding the Fourth Proportional to 279,348.32, 385,509.38 and 158,494.70

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Solution

The fourth proportional to 279,348.32, 385,509.38 and 158,494.70 is: 218,727.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,348.32 : 385,509.38 = 158,494.70 : x
  2. Step 2: Convert to fraction form
    279,348.32/385,509.38 = 158,494.70/x
  3. Step 3: Cross multiply
    279,348.32x = 385,509.38 × 158,494.70
  4. Step 4: Simplify right side
    279,348.32x = 61,101,190,810.27
  5. Step 5: Solve for x
    x = 61,101,190,810.27/279,348.32
  6. Step 6: Final answer
    x = 218,727.62

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1.5x scale

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.