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Finding the Fourth Proportional to 401,969.54, 554,719.50 and 220,700.06

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Solution

The fourth proportional to 401,969.54, 554,719.50 and 220,700.06 is: 304,566.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,969.54 : 554,719.50 = 220,700.06 : x
  2. Step 2: Convert to fraction form
    401,969.54/554,719.50 = 220,700.06/x
  3. Step 3: Cross multiply
    401,969.54x = 554,719.50 × 220,700.06
  4. Step 4: Simplify right side
    401,969.54x = 122,426,626,933.17
  5. Step 5: Solve for x
    x = 122,426,626,933.17/401,969.54
  6. Step 6: Final answer
    x = 304,566.93

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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.