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Finding the Fourth Proportional to 295,266.80, 442,597.80 and 145,276.40

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Solution

The fourth proportional to 295,266.80, 442,597.80 and 145,276.40 is: 217,765.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,266.80 : 442,597.80 = 145,276.40 : x
  2. Step 2: Convert to fraction form
    295,266.80/442,597.80 = 145,276.40/x
  3. Step 3: Cross multiply
    295,266.80x = 442,597.80 × 145,276.40
  4. Step 4: Simplify right side
    295,266.80x = 64,299,015,031.92
  5. Step 5: Solve for x
    x = 64,299,015,031.92/295,266.80
  6. Step 6: Final answer
    x = 217,765.81

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.