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Finding the Fourth Proportional to 484,671.90, 727,112.70 and 147,703.64

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Solution

The fourth proportional to 484,671.90, 727,112.70 and 147,703.64 is: 221,587.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,671.90 : 727,112.70 = 147,703.64 : x
  2. Step 2: Convert to fraction form
    484,671.90/727,112.70 = 147,703.64/x
  3. Step 3: Cross multiply
    484,671.90x = 727,112.70 × 147,703.64
  4. Step 4: Simplify right side
    484,671.90x = 107,397,188,844.67
  5. Step 5: Solve for x
    x = 107,397,188,844.67/484,671.90
  6. Step 6: Final answer
    x = 221,587.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.