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Finding the Fourth Proportional to 347,322.20, 520,205.70 and 207,354.20

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Solution

The fourth proportional to 347,322.20, 520,205.70 and 207,354.20 is: 310,567.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,322.20 : 520,205.70 = 207,354.20 : x
  2. Step 2: Convert to fraction form
    347,322.20/520,205.70 = 207,354.20/x
  3. Step 3: Cross multiply
    347,322.20x = 520,205.70 × 207,354.20
  4. Step 4: Simplify right side
    347,322.20x = 107,866,836,758.94
  5. Step 5: Solve for x
    x = 107,866,836,758.94/347,322.20
  6. Step 6: Final answer
    x = 310,567.07

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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.