Home / 205,900.47-284,147.46-115,254.18

Finding the Fourth Proportional to 205,900.47, 284,147.46 and 115,254.18

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Solution

The fourth proportional to 205,900.47, 284,147.46 and 115,254.18 is: 159,053.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,900.47 : 284,147.46 = 115,254.18 : x
  2. Step 2: Convert to fraction form
    205,900.47/284,147.46 = 115,254.18/x
  3. Step 3: Cross multiply
    205,900.47x = 284,147.46 × 115,254.18
  4. Step 4: Simplify right side
    205,900.47x = 32,749,182,501.38
  5. Step 5: Solve for x
    x = 32,749,182,501.38/205,900.47
  6. Step 6: Final answer
    x = 159,053.46

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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.