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Finding the Fourth Proportional to 330,010.60, 494,918.70 and 130,264.60

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Solution

The fourth proportional to 330,010.60, 494,918.70 and 130,264.60 is: 195,358.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,010.60 : 494,918.70 = 130,264.60 : x
  2. Step 2: Convert to fraction form
    330,010.60/494,918.70 = 130,264.60/x
  3. Step 3: Cross multiply
    330,010.60x = 494,918.70 × 130,264.60
  4. Step 4: Simplify right side
    330,010.60x = 64,470,386,488.02
  5. Step 5: Solve for x
    x = 64,470,386,488.02/330,010.60
  6. Step 6: Final answer
    x = 195,358.53

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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.