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Finding the Fourth Proportional to 371,064.12, 512,025.24 and 207,729.54

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Solution

The fourth proportional to 371,064.12, 512,025.24 and 207,729.54 is: 286,642.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,064.12 : 512,025.24 = 207,729.54 : x
  2. Step 2: Convert to fraction form
    371,064.12/512,025.24 = 207,729.54/x
  3. Step 3: Cross multiply
    371,064.12x = 512,025.24 × 207,729.54
  4. Step 4: Simplify right side
    371,064.12x = 106,362,767,573.59
  5. Step 5: Solve for x
    x = 106,362,767,573.59/371,064.12
  6. Step 6: Final answer
    x = 286,642.56

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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.