Home / 218,947.91-302,169.06-137,289.17

Finding the Fourth Proportional to 218,947.91, 302,169.06 and 137,289.17

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Solution

The fourth proportional to 218,947.91, 302,169.06 and 137,289.17 is: 189,472.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,947.91 : 302,169.06 = 137,289.17 : x
  2. Step 2: Convert to fraction form
    218,947.91/302,169.06 = 137,289.17/x
  3. Step 3: Cross multiply
    218,947.91x = 302,169.06 × 137,289.17
  4. Step 4: Simplify right side
    218,947.91x = 41,484,537,936.23
  5. Step 5: Solve for x
    x = 41,484,537,936.23/218,947.91
  6. Step 6: Final answer
    x = 189,472.18

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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.