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Finding the Fourth Proportional to 219,218.43, 328,853.57 and 69,465.63

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Solution

The fourth proportional to 219,218.43, 328,853.57 and 69,465.63 is: 104,206.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,218.43 : 328,853.57 = 69,465.63 : x
  2. Step 2: Convert to fraction form
    219,218.43/328,853.57 = 69,465.63/x
  3. Step 3: Cross multiply
    219,218.43x = 328,853.57 × 69,465.63
  4. Step 4: Simplify right side
    219,218.43x = 22,844,020,070.47
  5. Step 5: Solve for x
    x = 22,844,020,070.47/219,218.43
  6. Step 6: Final answer
    x = 104,206.66

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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.