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Finding the Fourth Proportional to 199,130.80, 299,279.40 and 195,631.60

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Solution

The fourth proportional to 199,130.80, 299,279.40 and 195,631.60 is: 294,020.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,130.80 : 299,279.40 = 195,631.60 : x
  2. Step 2: Convert to fraction form
    199,130.80/299,279.40 = 195,631.60/x
  3. Step 3: Cross multiply
    199,130.80x = 299,279.40 × 195,631.60
  4. Step 4: Simplify right side
    199,130.80x = 58,548,507,869.04
  5. Step 5: Solve for x
    x = 58,548,507,869.04/199,130.80
  6. Step 6: Final answer
    x = 294,020.35

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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.