Home / 279,031.47-385,076.58-158,175.10

Finding the Fourth Proportional to 279,031.47, 385,076.58 and 158,175.10

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Solution

The fourth proportional to 279,031.47, 385,076.58 and 158,175.10 is: 218,289.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,031.47 : 385,076.58 = 158,175.10 : x
  2. Step 2: Convert to fraction form
    279,031.47/385,076.58 = 158,175.10/x
  3. Step 3: Cross multiply
    279,031.47x = 385,076.58 × 158,175.10
  4. Step 4: Simplify right side
    279,031.47x = 60,909,526,549.16
  5. Step 5: Solve for x
    x = 60,909,526,549.16/279,031.47
  6. Step 6: Final answer
    x = 218,289.09

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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.