Home / 211,461.76-291,774.85-120,847.47

Finding the Fourth Proportional to 211,461.76, 291,774.85 and 120,847.47

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Solution

The fourth proportional to 211,461.76, 291,774.85 and 120,847.47 is: 166,745.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,461.76 : 291,774.85 = 120,847.47 : x
  2. Step 2: Convert to fraction form
    211,461.76/291,774.85 = 120,847.47/x
  3. Step 3: Cross multiply
    211,461.76x = 291,774.85 × 120,847.47
  4. Step 4: Simplify right side
    211,461.76x = 35,260,252,432.13
  5. Step 5: Solve for x
    x = 35,260,252,432.13/211,461.76
  6. Step 6: Final answer
    x = 166,745.29

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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.