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Finding the Fourth Proportional to 215,573.01, 297,499.95 and 120,079.68

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Solution

The fourth proportional to 215,573.01, 297,499.95 and 120,079.68 is: 165,715.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,573.01 : 297,499.95 = 120,079.68 : x
  2. Step 2: Convert to fraction form
    215,573.01/297,499.95 = 120,079.68/x
  3. Step 3: Cross multiply
    215,573.01x = 297,499.95 × 120,079.68
  4. Step 4: Simplify right side
    215,573.01x = 35,723,698,796.02
  5. Step 5: Solve for x
    x = 35,723,698,796.02/215,573.01
  6. Step 6: Final answer
    x = 165,715.08

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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.