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Finding the Fourth Proportional to 221,776.05, 306,051.04 and 119,801.51

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Solution

The fourth proportional to 221,776.05, 306,051.04 and 119,801.51 is: 165,326.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,776.05 : 306,051.04 = 119,801.51 : x
  2. Step 2: Convert to fraction form
    221,776.05/306,051.04 = 119,801.51/x
  3. Step 3: Cross multiply
    221,776.05x = 306,051.04 × 119,801.51
  4. Step 4: Simplify right side
    221,776.05x = 36,665,376,729.07
  5. Step 5: Solve for x
    x = 36,665,376,729.07/221,776.05
  6. Step 6: Final answer
    x = 165,326.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.