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Finding the Fourth Proportional to 384,014.60, 576,021.90 and 117,816.20

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Solution

The fourth proportional to 384,014.60, 576,021.90 and 117,816.20 is: 176,724.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,014.60 : 576,021.90 = 117,816.20 : x
  2. Step 2: Convert to fraction form
    384,014.60/576,021.90 = 117,816.20/x
  3. Step 3: Cross multiply
    384,014.60x = 576,021.90 × 117,816.20
  4. Step 4: Simplify right side
    384,014.60x = 67,864,711,374.78
  5. Step 5: Solve for x
    x = 67,864,711,374.78/384,014.60
  6. Step 6: Final answer
    x = 176,724.30

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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.