Home / 215,945.12-323,253.12-140,903.84

Finding the Fourth Proportional to 215,945.12, 323,253.12 and 140,903.84

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Solution

The fourth proportional to 215,945.12, 323,253.12 and 140,903.84 is: 210,922.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,945.12 : 323,253.12 = 140,903.84 : x
  2. Step 2: Convert to fraction form
    215,945.12/323,253.12 = 140,903.84/x
  3. Step 3: Cross multiply
    215,945.12x = 323,253.12 × 140,903.84
  4. Step 4: Simplify right side
    215,945.12x = 45,547,605,899.98
  5. Step 5: Solve for x
    x = 45,547,605,899.98/215,945.12
  6. Step 6: Final answer
    x = 210,922.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.