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Finding the Fourth Proportional to 635,523, 953,415.78 and 186,258.60

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Solution

The fourth proportional to 635,523, 953,415.78 and 186,258.60 is: 279,426.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,523 : 953,415.78 = 186,258.60 : x
  2. Step 2: Convert to fraction form
    635,523/953,415.78 = 186,258.60/x
  3. Step 3: Cross multiply
    635,523x = 953,415.78 × 186,258.60
  4. Step 4: Simplify right side
    635,523x = 177,581,888,400.71
  5. Step 5: Solve for x
    x = 177,581,888,400.71/635,523
  6. Step 6: Final answer
    x = 279,426.38

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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.