Home / 211,269.31-291,551.85-115,776.22

Finding the Fourth Proportional to 211,269.31, 291,551.85 and 115,776.22

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Solution

The fourth proportional to 211,269.31, 291,551.85 and 115,776.22 is: 159,771.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,269.31 : 291,551.85 = 115,776.22 : x
  2. Step 2: Convert to fraction form
    211,269.31/291,551.85 = 115,776.22/x
  3. Step 3: Cross multiply
    211,269.31x = 291,551.85 × 115,776.22
  4. Step 4: Simplify right side
    211,269.31x = 33,754,771,127.01
  5. Step 5: Solve for x
    x = 33,754,771,127.01/211,269.31
  6. Step 6: Final answer
    x = 159,771.29

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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.