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Finding the Fourth Proportional to 242,299.20, 363,664.80 and 142,334.40

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Solution

The fourth proportional to 242,299.20, 363,664.80 and 142,334.40 is: 213,628.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,299.20 : 363,664.80 = 142,334.40 : x
  2. Step 2: Convert to fraction form
    242,299.20/363,664.80 = 142,334.40/x
  3. Step 3: Cross multiply
    242,299.20x = 363,664.80 × 142,334.40
  4. Step 4: Simplify right side
    242,299.20x = 51,762,011,109.12
  5. Step 5: Solve for x
    x = 51,762,011,109.12/242,299.20
  6. Step 6: Final answer
    x = 213,628.49

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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.