Home / 219,474.91-302,900.04-123,987.79

Finding the Fourth Proportional to 219,474.91, 302,900.04 and 123,987.79

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Solution

The fourth proportional to 219,474.91, 302,900.04 and 123,987.79 is: 171,117.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,474.91 : 302,900.04 = 123,987.79 : x
  2. Step 2: Convert to fraction form
    219,474.91/302,900.04 = 123,987.79/x
  3. Step 3: Cross multiply
    219,474.91x = 302,900.04 × 123,987.79
  4. Step 4: Simplify right side
    219,474.91x = 37,555,906,550.51
  5. Step 5: Solve for x
    x = 37,555,906,550.51/219,474.91
  6. Step 6: Final answer
    x = 171,117.08

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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.