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Finding the Fourth Proportional to 352,274.13, 486,224.78 and 216,340.47

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Solution

The fourth proportional to 352,274.13, 486,224.78 and 216,340.47 is: 298,602.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,274.13 : 486,224.78 = 216,340.47 : x
  2. Step 2: Convert to fraction form
    352,274.13/486,224.78 = 216,340.47/x
  3. Step 3: Cross multiply
    352,274.13x = 486,224.78 × 216,340.47
  4. Step 4: Simplify right side
    352,274.13x = 105,190,096,349.14
  5. Step 5: Solve for x
    x = 105,190,096,349.14/352,274.13
  6. Step 6: Final answer
    x = 298,602.96

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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.