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Finding the Fourth Proportional to 346,033.20, 519,049.80 and 212,480.40

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Solution

The fourth proportional to 346,033.20, 519,049.80 and 212,480.40 is: 318,720.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,033.20 : 519,049.80 = 212,480.40 : x
  2. Step 2: Convert to fraction form
    346,033.20/519,049.80 = 212,480.40/x
  3. Step 3: Cross multiply
    346,033.20x = 519,049.80 × 212,480.40
  4. Step 4: Simplify right side
    346,033.20x = 110,287,909,123.92
  5. Step 5: Solve for x
    x = 110,287,909,123.92/346,033.20
  6. Step 6: Final answer
    x = 318,720.60

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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.