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Finding the Fourth Proportional to 188,644.17, 260,323.47 and 103,761.21

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Solution

The fourth proportional to 188,644.17, 260,323.47 and 103,761.21 is: 143,187.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,644.17 : 260,323.47 = 103,761.21 : x
  2. Step 2: Convert to fraction form
    188,644.17/260,323.47 = 103,761.21/x
  3. Step 3: Cross multiply
    188,644.17x = 260,323.47 × 103,761.21
  4. Step 4: Simplify right side
    188,644.17x = 27,011,478,238.60
  5. Step 5: Solve for x
    x = 27,011,478,238.60/188,644.17
  6. Step 6: Final answer
    x = 143,187.45

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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.