Home / 279,341.06-385,530.33-158,512.10

Finding the Fourth Proportional to 279,341.06, 385,530.33 and 158,512.10

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Solution

The fourth proportional to 279,341.06, 385,530.33 and 158,512.10 is: 218,769.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,341.06 : 385,530.33 = 158,512.10 : x
  2. Step 2: Convert to fraction form
    279,341.06/385,530.33 = 158,512.10/x
  3. Step 3: Cross multiply
    279,341.06x = 385,530.33 × 158,512.10
  4. Step 4: Simplify right side
    279,341.06x = 61,111,222,221.99
  5. Step 5: Solve for x
    x = 61,111,222,221.99/279,341.06
  6. Step 6: Final answer
    x = 218,769.21

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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.