Home / 215,522.40-297,339.12-130,608.48

Finding the Fourth Proportional to 215,522.40, 297,339.12 and 130,608.48

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Solution

The fourth proportional to 215,522.40, 297,339.12 and 130,608.48 is: 180,190.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,522.40 : 297,339.12 = 130,608.48 : x
  2. Step 2: Convert to fraction form
    215,522.40/297,339.12 = 130,608.48/x
  3. Step 3: Cross multiply
    215,522.40x = 297,339.12 × 130,608.48
  4. Step 4: Simplify right side
    215,522.40x = 38,835,010,507.74
  5. Step 5: Solve for x
    x = 38,835,010,507.74/215,522.40
  6. Step 6: Final answer
    x = 180,190.14

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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.