Home / 347,986.84-480,199.10-204,719.20

Finding the Fourth Proportional to 347,986.84, 480,199.10 and 204,719.20

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Solution

The fourth proportional to 347,986.84, 480,199.10 and 204,719.20 is: 282,499.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,986.84 : 480,199.10 = 204,719.20 : x
  2. Step 2: Convert to fraction form
    347,986.84/480,199.10 = 204,719.20/x
  3. Step 3: Cross multiply
    347,986.84x = 480,199.10 × 204,719.20
  4. Step 4: Simplify right side
    347,986.84x = 98,305,975,592.72
  5. Step 5: Solve for x
    x = 98,305,975,592.72/347,986.84
  6. Step 6: Final answer
    x = 282,499.12

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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.