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Finding the Fourth Proportional to 215,353.48, 297,184.80 and 119,860.20

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Solution

The fourth proportional to 215,353.48, 297,184.80 and 119,860.20 is: 165,405.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,353.48 : 297,184.80 = 119,860.20 : x
  2. Step 2: Convert to fraction form
    215,353.48/297,184.80 = 119,860.20/x
  3. Step 3: Cross multiply
    215,353.48x = 297,184.80 × 119,860.20
  4. Step 4: Simplify right side
    215,353.48x = 35,620,629,564.96
  5. Step 5: Solve for x
    x = 35,620,629,564.96/215,353.48
  6. Step 6: Final answer
    x = 165,405.40

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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.