Home / 346,086.20-519,129.30-212,533.40

Finding the Fourth Proportional to 346,086.20, 519,129.30 and 212,533.40

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Solution

The fourth proportional to 346,086.20, 519,129.30 and 212,533.40 is: 318,800.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,086.20 : 519,129.30 = 212,533.40 : x
  2. Step 2: Convert to fraction form
    346,086.20/519,129.30 = 212,533.40/x
  3. Step 3: Cross multiply
    346,086.20x = 519,129.30 × 212,533.40
  4. Step 4: Simplify right side
    346,086.20x = 110,332,315,168.62
  5. Step 5: Solve for x
    x = 110,332,315,168.62/346,086.20
  6. Step 6: Final answer
    x = 318,800.10

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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.