Home / 226,136.12-312,031.50-130,655.48

Finding the Fourth Proportional to 226,136.12, 312,031.50 and 130,655.48

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Solution

The fourth proportional to 226,136.12, 312,031.50 and 130,655.48 is: 180,283.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,136.12 : 312,031.50 = 130,655.48 : x
  2. Step 2: Convert to fraction form
    226,136.12/312,031.50 = 130,655.48/x
  3. Step 3: Cross multiply
    226,136.12x = 312,031.50 × 130,655.48
  4. Step 4: Simplify right side
    226,136.12x = 40,768,625,407.62
  5. Step 5: Solve for x
    x = 40,768,625,407.62/226,136.12
  6. Step 6: Final answer
    x = 180,283.56

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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.