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Finding the Fourth Proportional to 295,318.40, 442,977.60 and 195,591.20

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Solution

The fourth proportional to 295,318.40, 442,977.60 and 195,591.20 is: 293,386.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,318.40 : 442,977.60 = 195,591.20 : x
  2. Step 2: Convert to fraction form
    295,318.40/442,977.60 = 195,591.20/x
  3. Step 3: Cross multiply
    295,318.40x = 442,977.60 × 195,591.20
  4. Step 4: Simplify right side
    295,318.40x = 86,642,520,357.12
  5. Step 5: Solve for x
    x = 86,642,520,357.12/295,318.40
  6. Step 6: Final answer
    x = 293,386.80

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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.