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Finding the Fourth Proportional to 489,867.88, 735,073.98 and 265,225

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Solution

The fourth proportional to 489,867.88, 735,073.98 and 265,225 is: 397,984.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,867.88 : 735,073.98 = 265,225 : x
  2. Step 2: Convert to fraction form
    489,867.88/735,073.98 = 265,225/x
  3. Step 3: Cross multiply
    489,867.88x = 735,073.98 × 265,225
  4. Step 4: Simplify right side
    489,867.88x = 194,959,996,345.50
  5. Step 5: Solve for x
    x = 194,959,996,345.50/489,867.88
  6. Step 6: Final answer
    x = 397,984.85

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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.