Home / 226,135.12-312,030.12-130,654.48

Finding the Fourth Proportional to 226,135.12, 312,030.12 and 130,654.48

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Solution

The fourth proportional to 226,135.12, 312,030.12 and 130,654.48 is: 180,282.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,135.12 : 312,030.12 = 130,654.48 : x
  2. Step 2: Convert to fraction form
    226,135.12/312,030.12 = 130,654.48/x
  3. Step 3: Cross multiply
    226,135.12x = 312,030.12 × 130,654.48
  4. Step 4: Simplify right side
    226,135.12x = 40,768,133,072.94
  5. Step 5: Solve for x
    x = 40,768,133,072.94/226,135.12
  6. Step 6: Final answer
    x = 180,282.18

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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.