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Finding the Fourth Proportional to 326,565.90, 450,727.26 and 188,750.70

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Solution

The fourth proportional to 326,565.90, 450,727.26 and 188,750.70 is: 260,514.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,565.90 : 450,727.26 = 188,750.70 : x
  2. Step 2: Convert to fraction form
    326,565.90/450,727.26 = 188,750.70/x
  3. Step 3: Cross multiply
    326,565.90x = 450,727.26 × 188,750.70
  4. Step 4: Simplify right side
    326,565.90x = 85,075,085,834.08
  5. Step 5: Solve for x
    x = 85,075,085,834.08/326,565.90
  6. Step 6: Final answer
    x = 260,514.30

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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.