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Finding the Fourth Proportional to 347,044.20, 520,080.30 and 276,088.20

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Solution

The fourth proportional to 347,044.20, 520,080.30 and 276,088.20 is: 413,745.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,044.20 : 520,080.30 = 276,088.20 : x
  2. Step 2: Convert to fraction form
    347,044.20/520,080.30 = 276,088.20/x
  3. Step 3: Cross multiply
    347,044.20x = 520,080.30 × 276,088.20
  4. Step 4: Simplify right side
    347,044.20x = 143,588,033,882.46
  5. Step 5: Solve for x
    x = 143,588,033,882.46/347,044.20
  6. Step 6: Final answer
    x = 413,745.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.