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Finding the Fourth Proportional to 415,938.60, 623,907.90 and 166,799.40

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Solution

The fourth proportional to 415,938.60, 623,907.90 and 166,799.40 is: 250,199.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,938.60 : 623,907.90 = 166,799.40 : x
  2. Step 2: Convert to fraction form
    415,938.60/623,907.90 = 166,799.40/x
  3. Step 3: Cross multiply
    415,938.60x = 623,907.90 × 166,799.40
  4. Step 4: Simplify right side
    415,938.60x = 104,067,463,375.26
  5. Step 5: Solve for x
    x = 104,067,463,375.26/415,938.60
  6. Step 6: Final answer
    x = 250,199.10

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Similar ratio
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1.5x scale

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.