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Finding the Fourth Proportional to 371,398.92, 512,530.51 and 201,633.05

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Solution

The fourth proportional to 371,398.92, 512,530.51 and 201,633.05 is: 278,253.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,398.92 : 512,530.51 = 201,633.05 : x
  2. Step 2: Convert to fraction form
    371,398.92/512,530.51 = 201,633.05/x
  3. Step 3: Cross multiply
    371,398.92x = 512,530.51 × 201,633.05
  4. Step 4: Simplify right side
    371,398.92x = 103,343,088,788.77
  5. Step 5: Solve for x
    x = 103,343,088,788.77/371,398.92
  6. Step 6: Final answer
    x = 278,253.60

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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.