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Finding the Fourth Proportional to 208,654.80, 312,903.60 and 75,502.12

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Solution

The fourth proportional to 208,654.80, 312,903.60 and 75,502.12 is: 113,224.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,654.80 : 312,903.60 = 75,502.12 : x
  2. Step 2: Convert to fraction form
    208,654.80/312,903.60 = 75,502.12/x
  3. Step 3: Cross multiply
    208,654.80x = 312,903.60 × 75,502.12
  4. Step 4: Simplify right side
    208,654.80x = 23,624,885,155.63
  5. Step 5: Solve for x
    x = 23,624,885,155.63/208,654.80
  6. Step 6: Final answer
    x = 113,224.74

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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.