Home / 211,023.12-291,217-115,529.52

Finding the Fourth Proportional to 211,023.12, 291,217 and 115,529.52

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Solution

The fourth proportional to 211,023.12, 291,217 and 115,529.52 is: 159,433.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,023.12 : 291,217 = 115,529.52 : x
  2. Step 2: Convert to fraction form
    211,023.12/291,217 = 115,529.52/x
  3. Step 3: Cross multiply
    211,023.12x = 291,217 × 115,529.52
  4. Step 4: Simplify right side
    211,023.12x = 33,644,160,225.84
  5. Step 5: Solve for x
    x = 33,644,160,225.84/211,023.12
  6. Step 6: Final answer
    x = 159,433.53

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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.