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Finding the Fourth Proportional to 295,437.38, 408,043.05 and 215,223.62

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Solution

The fourth proportional to 295,437.38, 408,043.05 and 215,223.62 is: 297,255.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,437.38 : 408,043.05 = 215,223.62 : x
  2. Step 2: Convert to fraction form
    295,437.38/408,043.05 = 215,223.62/x
  3. Step 3: Cross multiply
    295,437.38x = 408,043.05 × 215,223.62
  4. Step 4: Simplify right side
    295,437.38x = 87,820,502,336.84
  5. Step 5: Solve for x
    x = 87,820,502,336.84/295,437.38
  6. Step 6: Final answer
    x = 297,255.89

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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.