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Finding the Fourth Proportional to 360,698.67, 497,923.61 and 215,555.65

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Solution

The fourth proportional to 360,698.67, 497,923.61 and 215,555.65 is: 297,562.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,698.67 : 497,923.61 = 215,555.65 : x
  2. Step 2: Convert to fraction form
    360,698.67/497,923.61 = 215,555.65/x
  3. Step 3: Cross multiply
    360,698.67x = 497,923.61 × 215,555.65
  4. Step 4: Simplify right side
    360,698.67x = 107,330,245,081.31
  5. Step 5: Solve for x
    x = 107,330,245,081.31/360,698.67
  6. Step 6: Final answer
    x = 297,562.08

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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.