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Finding the Fourth Proportional to 487,953.10, 731,893.20 and 203,570.20

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Solution

The fourth proportional to 487,953.10, 731,893.20 and 203,570.20 is: 305,340.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,953.10 : 731,893.20 = 203,570.20 : x
  2. Step 2: Convert to fraction form
    487,953.10/731,893.20 = 203,570.20/x
  3. Step 3: Cross multiply
    487,953.10x = 731,893.20 × 203,570.20
  4. Step 4: Simplify right side
    487,953.10x = 148,991,645,102.64
  5. Step 5: Solve for x
    x = 148,991,645,102.64/487,953.10
  6. Step 6: Final answer
    x = 305,340.09

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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.