Home / 211,013.60-291,202.24-115,518.72

Finding the Fourth Proportional to 211,013.60, 291,202.24 and 115,518.72

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Solution

The fourth proportional to 211,013.60, 291,202.24 and 115,518.72 is: 159,417.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,013.60 : 291,202.24 = 115,518.72 : x
  2. Step 2: Convert to fraction form
    211,013.60/291,202.24 = 115,518.72/x
  3. Step 3: Cross multiply
    211,013.60x = 291,202.24 × 115,518.72
  4. Step 4: Simplify right side
    211,013.60x = 33,639,310,025.93
  5. Step 5: Solve for x
    x = 33,639,310,025.93/211,013.60
  6. Step 6: Final answer
    x = 159,417.73

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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.