Home / 219,227.34-302,584.28-128,612.42

Finding the Fourth Proportional to 219,227.34, 302,584.28 and 128,612.42

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Solution

The fourth proportional to 219,227.34, 302,584.28 and 128,612.42 is: 177,514.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,227.34 : 302,584.28 = 128,612.42 : x
  2. Step 2: Convert to fraction form
    219,227.34/302,584.28 = 128,612.42/x
  3. Step 3: Cross multiply
    219,227.34x = 302,584.28 × 128,612.42
  4. Step 4: Simplify right side
    219,227.34x = 38,916,096,504.76
  5. Step 5: Solve for x
    x = 38,916,096,504.76/219,227.34
  6. Step 6: Final answer
    x = 177,514.80

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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.