Home / 218,866.12-302,017.10-123,396.28

Finding the Fourth Proportional to 218,866.12, 302,017.10 and 123,396.28

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Solution

The fourth proportional to 218,866.12, 302,017.10 and 123,396.28 is: 170,276.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,866.12 : 302,017.10 = 123,396.28 : x
  2. Step 2: Convert to fraction form
    218,866.12/302,017.10 = 123,396.28/x
  3. Step 3: Cross multiply
    218,866.12x = 302,017.10 × 123,396.28
  4. Step 4: Simplify right side
    218,866.12x = 37,267,786,636.39
  5. Step 5: Solve for x
    x = 37,267,786,636.39/218,866.12
  6. Step 6: Final answer
    x = 170,276.64

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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.