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Finding the Fourth Proportional to 371,244.78, 512,319.06 and 201,478.86

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Solution

The fourth proportional to 371,244.78, 512,319.06 and 201,478.86 is: 278,041.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,244.78 : 512,319.06 = 201,478.86 : x
  2. Step 2: Convert to fraction form
    371,244.78/512,319.06 = 201,478.86/x
  3. Step 3: Cross multiply
    371,244.78x = 512,319.06 × 201,478.86
  4. Step 4: Simplify right side
    371,244.78x = 103,221,460,165.07
  5. Step 5: Solve for x
    x = 103,221,460,165.07/371,244.78
  6. Step 6: Final answer
    x = 278,041.51

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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.