Home / 219,228.68-302,521.29-123,722.39

Finding the Fourth Proportional to 219,228.68, 302,521.29 and 123,722.39

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Solution

The fourth proportional to 219,228.68, 302,521.29 and 123,722.39 is: 170,728.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,228.68 : 302,521.29 = 123,722.39 : x
  2. Step 2: Convert to fraction form
    219,228.68/302,521.29 = 123,722.39/x
  3. Step 3: Cross multiply
    219,228.68x = 302,521.29 × 123,722.39
  4. Step 4: Simplify right side
    219,228.68x = 37,428,657,024.68
  5. Step 5: Solve for x
    x = 37,428,657,024.68/219,228.68
  6. Step 6: Final answer
    x = 170,728.83

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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.