Home / 211,110.16-291,321.20-115,598.40

Finding the Fourth Proportional to 211,110.16, 291,321.20 and 115,598.40

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Solution

The fourth proportional to 211,110.16, 291,321.20 and 115,598.40 is: 159,519.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,110.16 : 291,321.20 = 115,598.40 : x
  2. Step 2: Convert to fraction form
    211,110.16/291,321.20 = 115,598.40/x
  3. Step 3: Cross multiply
    211,110.16x = 291,321.20 × 115,598.40
  4. Step 4: Simplify right side
    211,110.16x = 33,676,264,606.08
  5. Step 5: Solve for x
    x = 33,676,264,606.08/211,110.16
  6. Step 6: Final answer
    x = 159,519.87

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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.