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Finding the Fourth Proportional to 228,602.50, 315,398.55 and 148,091.74

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Solution

The fourth proportional to 228,602.50, 315,398.55 and 148,091.74 is: 204,319.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,602.50 : 315,398.55 = 148,091.74 : x
  2. Step 2: Convert to fraction form
    228,602.50/315,398.55 = 148,091.74/x
  3. Step 3: Cross multiply
    228,602.50x = 315,398.55 × 148,091.74
  4. Step 4: Simplify right side
    228,602.50x = 46,707,920,062.98
  5. Step 5: Solve for x
    x = 46,707,920,062.98/228,602.50
  6. Step 6: Final answer
    x = 204,319.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.