Home / 219,228.34-302,585.66-128,613.42

Finding the Fourth Proportional to 219,228.34, 302,585.66 and 128,613.42

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Solution

The fourth proportional to 219,228.34, 302,585.66 and 128,613.42 is: 177,516.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,228.34 : 302,585.66 = 128,613.42 : x
  2. Step 2: Convert to fraction form
    219,228.34/302,585.66 = 128,613.42/x
  3. Step 3: Cross multiply
    219,228.34x = 302,585.66 × 128,613.42
  4. Step 4: Simplify right side
    219,228.34x = 38,916,576,575.56
  5. Step 5: Solve for x
    x = 38,916,576,575.56/219,228.34
  6. Step 6: Final answer
    x = 177,516.18

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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.