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Finding the Fourth Proportional to 635,478.30, 953,217 and 162,163.74

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Solution

The fourth proportional to 635,478.30, 953,217 and 162,163.74 is: 243,245.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,478.30 : 953,217 = 162,163.74 : x
  2. Step 2: Convert to fraction form
    635,478.30/953,217 = 162,163.74/x
  3. Step 3: Cross multiply
    635,478.30x = 953,217 × 162,163.74
  4. Step 4: Simplify right side
    635,478.30x = 154,577,233,751.58
  5. Step 5: Solve for x
    x = 154,577,233,751.58/635,478.30
  6. Step 6: Final answer
    x = 243,245.50

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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.