Home / 211,082.10-291,284.55-115,587.15

Finding the Fourth Proportional to 211,082.10, 291,284.55 and 115,587.15

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Solution

The fourth proportional to 211,082.10, 291,284.55 and 115,587.15 is: 159,505.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,082.10 : 291,284.55 = 115,587.15 : x
  2. Step 2: Convert to fraction form
    211,082.10/291,284.55 = 115,587.15/x
  3. Step 3: Cross multiply
    211,082.10x = 291,284.55 × 115,587.15
  4. Step 4: Simplify right side
    211,082.10x = 33,668,750,973.53
  5. Step 5: Solve for x
    x = 33,668,750,973.53/211,082.10
  6. Step 6: Final answer
    x = 159,505.48

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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.