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Finding the Fourth Proportional to 246,680.40, 370,020.60 and 209,938.80

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Solution

The fourth proportional to 246,680.40, 370,020.60 and 209,938.80 is: 314,908.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,680.40 : 370,020.60 = 209,938.80 : x
  2. Step 2: Convert to fraction form
    246,680.40/370,020.60 = 209,938.80/x
  3. Step 3: Cross multiply
    246,680.40x = 370,020.60 × 209,938.80
  4. Step 4: Simplify right side
    246,680.40x = 77,681,680,739.28
  5. Step 5: Solve for x
    x = 77,681,680,739.28/246,680.40
  6. Step 6: Final answer
    x = 314,908.20

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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.