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Finding the Fourth Proportional to 401,571.02, 554,162.84 and 229,487.02

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Solution

The fourth proportional to 401,571.02, 554,162.84 and 229,487.02 is: 316,689.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,571.02 : 554,162.84 = 229,487.02 : x
  2. Step 2: Convert to fraction form
    401,571.02/554,162.84 = 229,487.02/x
  3. Step 3: Cross multiply
    401,571.02x = 554,162.84 × 229,487.02
  4. Step 4: Simplify right side
    401,571.02x = 127,173,174,828.09
  5. Step 5: Solve for x
    x = 127,173,174,828.09/401,571.02
  6. Step 6: Final answer
    x = 316,689.12

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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.