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Finding the Fourth Proportional to 328,309.38, 452,867.49 and 207,353.70

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Solution

The fourth proportional to 328,309.38, 452,867.49 and 207,353.70 is: 286,022.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,309.38 : 452,867.49 = 207,353.70 : x
  2. Step 2: Convert to fraction form
    328,309.38/452,867.49 = 207,353.70/x
  3. Step 3: Cross multiply
    328,309.38x = 452,867.49 × 207,353.70
  4. Step 4: Simplify right side
    328,309.38x = 93,903,749,661.21
  5. Step 5: Solve for x
    x = 93,903,749,661.21/328,309.38
  6. Step 6: Final answer
    x = 286,022.13

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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.