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Finding the Fourth Proportional to 219,210.58, 328,778.81 and 61,402.73

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Solution

The fourth proportional to 219,210.58, 328,778.81 and 61,402.73 is: 92,093.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,210.58 : 328,778.81 = 61,402.73 : x
  2. Step 2: Convert to fraction form
    219,210.58/328,778.81 = 61,402.73/x
  3. Step 3: Cross multiply
    219,210.58x = 328,778.81 × 61,402.73
  4. Step 4: Simplify right side
    219,210.58x = 20,187,917,639.92
  5. Step 5: Solve for x
    x = 20,187,917,639.92/219,210.58
  6. Step 6: Final answer
    x = 92,093.72

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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.