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Finding the Fourth Proportional to 302,781.60, 453,581.88 and 260,659.98

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Solution

The fourth proportional to 302,781.60, 453,581.88 and 260,659.98 is: 390,481.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,781.60 : 453,581.88 = 260,659.98 : x
  2. Step 2: Convert to fraction form
    302,781.60/453,581.88 = 260,659.98/x
  3. Step 3: Cross multiply
    302,781.60x = 453,581.88 × 260,659.98
  4. Step 4: Simplify right side
    302,781.60x = 118,230,643,769.16
  5. Step 5: Solve for x
    x = 118,230,643,769.16/302,781.60
  6. Step 6: Final answer
    x = 390,481.60

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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.