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Finding the Fourth Proportional to 221,850.30, 306,159.51 and 135,807.51

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Solution

The fourth proportional to 221,850.30, 306,159.51 and 135,807.51 is: 187,418.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,850.30 : 306,159.51 = 135,807.51 : x
  2. Step 2: Convert to fraction form
    221,850.30/306,159.51 = 135,807.51/x
  3. Step 3: Cross multiply
    221,850.30x = 306,159.51 × 135,807.51
  4. Step 4: Simplify right side
    221,850.30x = 41,578,760,715.92
  5. Step 5: Solve for x
    x = 41,578,760,715.92/221,850.30
  6. Step 6: Final answer
    x = 187,418.10

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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.