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Finding the Fourth Proportional to 489,876.60, 735,040.88 and 223,718.70

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Solution

The fourth proportional to 489,876.60, 735,040.88 and 223,718.70 is: 335,681.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,876.60 : 735,040.88 = 223,718.70 : x
  2. Step 2: Convert to fraction form
    489,876.60/735,040.88 = 223,718.70/x
  3. Step 3: Cross multiply
    489,876.60x = 735,040.88 × 223,718.70
  4. Step 4: Simplify right side
    489,876.60x = 164,442,390,120.46
  5. Step 5: Solve for x
    x = 164,442,390,120.46/489,876.60
  6. Step 6: Final answer
    x = 335,681.25

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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.