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Finding the Fourth Proportional to 219,214.30, 328,854.30 and 92,854.30

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Solution

The fourth proportional to 219,214.30, 328,854.30 and 92,854.30 is: 139,295.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,214.30 : 328,854.30 = 92,854.30 : x
  2. Step 2: Convert to fraction form
    219,214.30/328,854.30 = 92,854.30/x
  3. Step 3: Cross multiply
    219,214.30x = 328,854.30 × 92,854.30
  4. Step 4: Simplify right side
    219,214.30x = 30,535,535,828.49
  5. Step 5: Solve for x
    x = 30,535,535,828.49/219,214.30
  6. Step 6: Final answer
    x = 139,295.36

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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.