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Finding the Fourth Proportional to 503,056.25, 754,502.33 and 147,987.21

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Solution

The fourth proportional to 503,056.25, 754,502.33 and 147,987.21 is: 221,956.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,056.25 : 754,502.33 = 147,987.21 : x
  2. Step 2: Convert to fraction form
    503,056.25/754,502.33 = 147,987.21/x
  3. Step 3: Cross multiply
    503,056.25x = 754,502.33 × 147,987.21
  4. Step 4: Simplify right side
    503,056.25x = 111,656,694,015.26
  5. Step 5: Solve for x
    x = 111,656,694,015.26/503,056.25
  6. Step 6: Final answer
    x = 221,956.68

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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.