Home / 211,387.28-291,714.05-115,900.16

Finding the Fourth Proportional to 211,387.28, 291,714.05 and 115,900.16

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Solution

The fourth proportional to 211,387.28, 291,714.05 and 115,900.16 is: 159,942.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,387.28 : 291,714.05 = 115,900.16 : x
  2. Step 2: Convert to fraction form
    211,387.28/291,714.05 = 115,900.16/x
  3. Step 3: Cross multiply
    211,387.28x = 291,714.05 × 115,900.16
  4. Step 4: Simplify right side
    211,387.28x = 33,809,703,031.18
  5. Step 5: Solve for x
    x = 33,809,703,031.18/211,387.28
  6. Step 6: Final answer
    x = 159,942.00

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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.