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Finding the Fourth Proportional to 306,798.92, 423,360.88 and 192,072.31

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Solution

The fourth proportional to 306,798.92, 423,360.88 and 192,072.31 is: 265,046.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,798.92 : 423,360.88 = 192,072.31 : x
  2. Step 2: Convert to fraction form
    306,798.92/423,360.88 = 192,072.31/x
  3. Step 3: Cross multiply
    306,798.92x = 423,360.88 × 192,072.31
  4. Step 4: Simplify right side
    306,798.92x = 81,315,900,646.65
  5. Step 5: Solve for x
    x = 81,315,900,646.65/306,798.92
  6. Step 6: Final answer
    x = 265,046.24

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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.