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Finding the Fourth Proportional to 371,087.02, 512,148.32 and 207,805.69

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Solution

The fourth proportional to 371,087.02, 512,148.32 and 207,805.69 is: 286,798.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,087.02 : 512,148.32 = 207,805.69 : x
  2. Step 2: Convert to fraction form
    371,087.02/512,148.32 = 207,805.69/x
  3. Step 3: Cross multiply
    371,087.02x = 512,148.32 × 207,805.69
  4. Step 4: Simplify right side
    371,087.02x = 106,427,335,400.37
  5. Step 5: Solve for x
    x = 106,427,335,400.37/371,087.02
  6. Step 6: Final answer
    x = 286,798.86

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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.