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Finding the Fourth Proportional to 371,224.25, 512,024.79 and 340,695.72

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Solution

The fourth proportional to 371,224.25, 512,024.79 and 340,695.72 is: 469,917.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,224.25 : 512,024.79 = 340,695.72 : x
  2. Step 2: Convert to fraction form
    371,224.25/512,024.79 = 340,695.72/x
  3. Step 3: Cross multiply
    371,224.25x = 512,024.79 × 340,695.72
  4. Step 4: Simplify right side
    371,224.25x = 174,444,654,486.90
  5. Step 5: Solve for x
    x = 174,444,654,486.90/371,224.25
  6. Step 6: Final answer
    x = 469,917.19

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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.