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Finding the Fourth Proportional to 636,971.14, 955,456.76 and 163,656.51

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Solution

The fourth proportional to 636,971.14, 955,456.76 and 163,656.51 is: 245,484.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,971.14 : 955,456.76 = 163,656.51 : x
  2. Step 2: Convert to fraction form
    636,971.14/955,456.76 = 163,656.51/x
  3. Step 3: Cross multiply
    636,971.14x = 955,456.76 × 163,656.51
  4. Step 4: Simplify right side
    636,971.14x = 156,366,718,797.51
  5. Step 5: Solve for x
    x = 156,366,718,797.51/636,971.14
  6. Step 6: Final answer
    x = 245,484.78

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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.