Home / 353,499.64-487,668.18-210,178.12

Finding the Fourth Proportional to 353,499.64, 487,668.18 and 210,178.12

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Solution

The fourth proportional to 353,499.64, 487,668.18 and 210,178.12 is: 289,949.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,499.64 : 487,668.18 = 210,178.12 : x
  2. Step 2: Convert to fraction form
    353,499.64/487,668.18 = 210,178.12/x
  3. Step 3: Cross multiply
    353,499.64x = 487,668.18 × 210,178.12
  4. Step 4: Simplify right side
    353,499.64x = 102,497,181,256.22
  5. Step 5: Solve for x
    x = 102,497,181,256.22/353,499.64
  6. Step 6: Final answer
    x = 289,949.89

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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.