Home / 211,026.91-291,205.66-115,515.16

Finding the Fourth Proportional to 211,026.91, 291,205.66 and 115,515.16

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Solution

The fourth proportional to 211,026.91, 291,205.66 and 115,515.16 is: 159,404.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,026.91 : 291,205.66 = 115,515.16 : x
  2. Step 2: Convert to fraction form
    211,026.91/291,205.66 = 115,515.16/x
  3. Step 3: Cross multiply
    211,026.91x = 291,205.66 × 115,515.16
  4. Step 4: Simplify right side
    211,026.91x = 33,638,668,407.81
  5. Step 5: Solve for x
    x = 33,638,668,407.81/211,026.91
  6. Step 6: Final answer
    x = 159,404.64

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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.