Home / 356,621.49-492,188.10-220,699.26

Finding the Fourth Proportional to 356,621.49, 492,188.10 and 220,699.26

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Solution

The fourth proportional to 356,621.49, 492,188.10 and 220,699.26 is: 304,596.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,621.49 : 492,188.10 = 220,699.26 : x
  2. Step 2: Convert to fraction form
    356,621.49/492,188.10 = 220,699.26/x
  3. Step 3: Cross multiply
    356,621.49x = 492,188.10 × 220,699.26
  4. Step 4: Simplify right side
    356,621.49x = 108,625,549,450.81
  5. Step 5: Solve for x
    x = 108,625,549,450.81/356,621.49
  6. Step 6: Final answer
    x = 304,596.20

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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.