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Finding the Fourth Proportional to 502,662.81, 754,531.40 and 203,339.06

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Solution

The fourth proportional to 502,662.81, 754,531.40 and 203,339.06 is: 305,225.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,662.81 : 754,531.40 = 203,339.06 : x
  2. Step 2: Convert to fraction form
    502,662.81/754,531.40 = 203,339.06/x
  3. Step 3: Cross multiply
    502,662.81x = 754,531.40 × 203,339.06
  4. Step 4: Simplify right side
    502,662.81x = 153,425,705,181.67
  5. Step 5: Solve for x
    x = 153,425,705,181.67/502,662.81
  6. Step 6: Final answer
    x = 305,225.89

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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.