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Finding the Fourth Proportional to 476,689.05, 657,835.63 and 258,901.97

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Solution

The fourth proportional to 476,689.05, 657,835.63 and 258,901.97 is: 357,287.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,689.05 : 657,835.63 = 258,901.97 : x
  2. Step 2: Convert to fraction form
    476,689.05/657,835.63 = 258,901.97/x
  3. Step 3: Cross multiply
    476,689.05x = 657,835.63 × 258,901.97
  4. Step 4: Simplify right side
    476,689.05x = 170,314,942,786.95
  5. Step 5: Solve for x
    x = 170,314,942,786.95/476,689.05
  6. Step 6: Final answer
    x = 357,287.30

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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.