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Finding the Fourth Proportional to 318,970.52, 439,883.65 and 232,793

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Solution

The fourth proportional to 318,970.52, 439,883.65 and 232,793 is: 321,038.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,970.52 : 439,883.65 = 232,793 : x
  2. Step 2: Convert to fraction form
    318,970.52/439,883.65 = 232,793/x
  3. Step 3: Cross multiply
    318,970.52x = 439,883.65 × 232,793
  4. Step 4: Simplify right side
    318,970.52x = 102,401,834,534.45
  5. Step 5: Solve for x
    x = 102,401,834,534.45/318,970.52
  6. Step 6: Final answer
    x = 321,038.55

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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.