Home / 279,212.47-385,302.02-151,885.33

Finding the Fourth Proportional to 279,212.47, 385,302.02 and 151,885.33

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Solution

The fourth proportional to 279,212.47, 385,302.02 and 151,885.33 is: 209,595.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,212.47 : 385,302.02 = 151,885.33 : x
  2. Step 2: Convert to fraction form
    279,212.47/385,302.02 = 151,885.33/x
  3. Step 3: Cross multiply
    279,212.47x = 385,302.02 × 151,885.33
  4. Step 4: Simplify right side
    279,212.47x = 58,521,722,734.68
  5. Step 5: Solve for x
    x = 58,521,722,734.68/279,212.47
  6. Step 6: Final answer
    x = 209,595.66

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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.