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Finding the Fourth Proportional to 635,715.60, 953,468.60 and 209,257

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Solution

The fourth proportional to 635,715.60, 953,468.60 and 209,257 is: 313,851.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,715.60 : 953,468.60 = 209,257 : x
  2. Step 2: Convert to fraction form
    635,715.60/953,468.60 = 209,257/x
  3. Step 3: Cross multiply
    635,715.60x = 953,468.60 × 209,257
  4. Step 4: Simplify right side
    635,715.60x = 199,519,978,830.20
  5. Step 5: Solve for x
    x = 199,519,978,830.20/635,715.60
  6. Step 6: Final answer
    x = 313,851.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.