Home / 285,184.48-393,135.46-217,082.84

Finding the Fourth Proportional to 285,184.48, 393,135.46 and 217,082.84

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Solution

The fourth proportional to 285,184.48, 393,135.46 and 217,082.84 is: 299,255.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,184.48 : 393,135.46 = 217,082.84 : x
  2. Step 2: Convert to fraction form
    285,184.48/393,135.46 = 217,082.84/x
  3. Step 3: Cross multiply
    285,184.48x = 393,135.46 × 217,082.84
  4. Step 4: Simplify right side
    285,184.48x = 85,342,962,161.51
  5. Step 5: Solve for x
    x = 85,342,962,161.51/285,184.48
  6. Step 6: Final answer
    x = 299,255.28

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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.