Home / 465,306.57-642,109.08-258,574.26

Finding the Fourth Proportional to 465,306.57, 642,109.08 and 258,574.26

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Solution

The fourth proportional to 465,306.57, 642,109.08 and 258,574.26 is: 356,824.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,306.57 : 642,109.08 = 258,574.26 : x
  2. Step 2: Convert to fraction form
    465,306.57/642,109.08 = 258,574.26/x
  3. Step 3: Cross multiply
    465,306.57x = 642,109.08 × 258,574.26
  4. Step 4: Simplify right side
    465,306.57x = 166,032,880,200.28
  5. Step 5: Solve for x
    x = 166,032,880,200.28/465,306.57
  6. Step 6: Final answer
    x = 356,824.71

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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.