Home / 418,629.60-627,944.40-169,311.60

Finding the Fourth Proportional to 418,629.60, 627,944.40 and 169,311.60

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Solution

The fourth proportional to 418,629.60, 627,944.40 and 169,311.60 is: 253,967.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,629.60 : 627,944.40 = 169,311.60 : x
  2. Step 2: Convert to fraction form
    418,629.60/627,944.40 = 169,311.60/x
  3. Step 3: Cross multiply
    418,629.60x = 627,944.40 × 169,311.60
  4. Step 4: Simplify right side
    418,629.60x = 106,318,271,075.04
  5. Step 5: Solve for x
    x = 106,318,271,075.04/418,629.60
  6. Step 6: Final answer
    x = 253,967.40

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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.