Home / 226,147.12-312,046.66-130,666.48

Finding the Fourth Proportional to 226,147.12, 312,046.66 and 130,666.48

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Solution

The fourth proportional to 226,147.12, 312,046.66 and 130,666.48 is: 180,298.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,147.12 : 312,046.66 = 130,666.48 : x
  2. Step 2: Convert to fraction form
    226,147.12/312,046.66 = 130,666.48/x
  3. Step 3: Cross multiply
    226,147.12x = 312,046.66 × 130,666.48
  4. Step 4: Simplify right side
    226,147.12x = 40,774,038,657.96
  5. Step 5: Solve for x
    x = 40,774,038,657.96/226,147.12
  6. Step 6: Final answer
    x = 180,298.73

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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.