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Finding the Fourth Proportional to 200,089.95, 276,147.95 and 115,223.55

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Solution

The fourth proportional to 200,089.95, 276,147.95 and 115,223.55 is: 159,022.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,089.95 : 276,147.95 = 115,223.55 : x
  2. Step 2: Convert to fraction form
    200,089.95/276,147.95 = 115,223.55/x
  3. Step 3: Cross multiply
    200,089.95x = 276,147.95 × 115,223.55
  4. Step 4: Simplify right side
    200,089.95x = 31,818,746,548.10
  5. Step 5: Solve for x
    x = 31,818,746,548.10/200,089.95
  6. Step 6: Final answer
    x = 159,022.21

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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.