Home / 215,416.08-297,266.10-119,920.86

Finding the Fourth Proportional to 215,416.08, 297,266.10 and 119,920.86

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Solution

The fourth proportional to 215,416.08, 297,266.10 and 119,920.86 is: 165,486.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,416.08 : 297,266.10 = 119,920.86 : x
  2. Step 2: Convert to fraction form
    215,416.08/297,266.10 = 119,920.86/x
  3. Step 3: Cross multiply
    215,416.08x = 297,266.10 × 119,920.86
  4. Step 4: Simplify right side
    215,416.08x = 35,648,406,360.85
  5. Step 5: Solve for x
    x = 35,648,406,360.85/215,416.08
  6. Step 6: Final answer
    x = 165,486.28

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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.