Home / 218,855.10-302,001.94-123,385.26

Finding the Fourth Proportional to 218,855.10, 302,001.94 and 123,385.26

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Solution

The fourth proportional to 218,855.10, 302,001.94 and 123,385.26 is: 170,261.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,855.10 : 302,001.94 = 123,385.26 : x
  2. Step 2: Convert to fraction form
    218,855.10/302,001.94 = 123,385.26/x
  3. Step 3: Cross multiply
    218,855.10x = 302,001.94 × 123,385.26
  4. Step 4: Simplify right side
    218,855.10x = 37,262,587,887.40
  5. Step 5: Solve for x
    x = 37,262,587,887.40/218,855.10
  6. Step 6: Final answer
    x = 170,261.46

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1.5x scale

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.