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Finding the Fourth Proportional to 662,765.40, 994,407.30 and 242,083.80

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Solution

The fourth proportional to 662,765.40, 994,407.30 and 242,083.80 is: 363,220.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,765.40 : 994,407.30 = 242,083.80 : x
  2. Step 2: Convert to fraction form
    662,765.40/994,407.30 = 242,083.80/x
  3. Step 3: Cross multiply
    662,765.40x = 994,407.30 × 242,083.80
  4. Step 4: Simplify right side
    662,765.40x = 240,729,897,931.74
  5. Step 5: Solve for x
    x = 240,729,897,931.74/662,765.40
  6. Step 6: Final answer
    x = 363,220.38

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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.