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Finding the Fourth Proportional to 290,227.92, 399,799.53 and 247,068.27

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Solution

The fourth proportional to 290,227.92, 399,799.53 and 247,068.27 is: 340,345.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,227.92 : 399,799.53 = 247,068.27 : x
  2. Step 2: Convert to fraction form
    290,227.92/399,799.53 = 247,068.27/x
  3. Step 3: Cross multiply
    290,227.92x = 399,799.53 × 247,068.27
  4. Step 4: Simplify right side
    290,227.92x = 98,777,778,223.91
  5. Step 5: Solve for x
    x = 98,777,778,223.91/290,227.92
  6. Step 6: Final answer
    x = 340,345.54

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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.