Home / 211,305.50-291,615.32-115,812.12

Finding the Fourth Proportional to 211,305.50, 291,615.32 and 115,812.12

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Solution

The fourth proportional to 211,305.50, 291,615.32 and 115,812.12 is: 159,828.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,305.50 : 291,615.32 = 115,812.12 : x
  2. Step 2: Convert to fraction form
    211,305.50/291,615.32 = 115,812.12/x
  3. Step 3: Cross multiply
    211,305.50x = 291,615.32 × 115,812.12
  4. Step 4: Simplify right side
    211,305.50x = 33,772,587,854.62
  5. Step 5: Solve for x
    x = 33,772,587,854.62/211,305.50
  6. Step 6: Final answer
    x = 159,828.25

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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.