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Finding the Fourth Proportional to 228,587.67, 342,903.96 and 78,808.23

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Solution

The fourth proportional to 228,587.67, 342,903.96 and 78,808.23 is: 118,220.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,587.67 : 342,903.96 = 78,808.23 : x
  2. Step 2: Convert to fraction form
    228,587.67/342,903.96 = 78,808.23/x
  3. Step 3: Cross multiply
    228,587.67x = 342,903.96 × 78,808.23
  4. Step 4: Simplify right side
    228,587.67x = 27,023,654,147.59
  5. Step 5: Solve for x
    x = 27,023,654,147.59/228,587.67
  6. Step 6: Final answer
    x = 118,220.09

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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.