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Finding the Fourth Proportional to 635,415.62, 953,307.90 and 256,140.62

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Solution

The fourth proportional to 635,415.62, 953,307.90 and 256,140.62 is: 384,285.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,415.62 : 953,307.90 = 256,140.62 : x
  2. Step 2: Convert to fraction form
    635,415.62/953,307.90 = 256,140.62/x
  3. Step 3: Cross multiply
    635,415.62x = 953,307.90 × 256,140.62
  4. Step 4: Simplify right side
    635,415.62x = 244,180,876,556.90
  5. Step 5: Solve for x
    x = 244,180,876,556.90/635,415.62
  6. Step 6: Final answer
    x = 384,285.29

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1.5x scale

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.