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Finding the Fourth Proportional to 302,515.60, 453,773.40 and 255,276.40

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Solution

The fourth proportional to 302,515.60, 453,773.40 and 255,276.40 is: 382,914.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,515.60 : 453,773.40 = 255,276.40 : x
  2. Step 2: Convert to fraction form
    302,515.60/453,773.40 = 255,276.40/x
  3. Step 3: Cross multiply
    302,515.60x = 453,773.40 × 255,276.40
  4. Step 4: Simplify right side
    302,515.60x = 115,837,639,967.76
  5. Step 5: Solve for x
    x = 115,837,639,967.76/302,515.60
  6. Step 6: Final answer
    x = 382,914.60

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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.