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Finding the Fourth Proportional to 489,130.40, 733,700.34 and 185,442.89

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Solution

The fourth proportional to 489,130.40, 733,700.34 and 185,442.89 is: 278,166.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,130.40 : 733,700.34 = 185,442.89 : x
  2. Step 2: Convert to fraction form
    489,130.40/733,700.34 = 185,442.89/x
  3. Step 3: Cross multiply
    489,130.40x = 733,700.34 × 185,442.89
  4. Step 4: Simplify right side
    489,130.40x = 136,059,511,443.58
  5. Step 5: Solve for x
    x = 136,059,511,443.58/489,130.40
  6. Step 6: Final answer
    x = 278,166.13

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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.