Home / 219,206.25-302,504.83-123,710.90

Finding the Fourth Proportional to 219,206.25, 302,504.83 and 123,710.90

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Solution

The fourth proportional to 219,206.25, 302,504.83 and 123,710.90 is: 170,721.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,206.25 : 302,504.83 = 123,710.90 : x
  2. Step 2: Convert to fraction form
    219,206.25/302,504.83 = 123,710.90/x
  3. Step 3: Cross multiply
    219,206.25x = 302,504.83 × 123,710.90
  4. Step 4: Simplify right side
    219,206.25x = 37,423,142,951.85
  5. Step 5: Solve for x
    x = 37,423,142,951.85/219,206.25
  6. Step 6: Final answer
    x = 170,721.15

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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.