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Finding the Fourth Proportional to 384,901.80, 577,365.90 and 118,660.20

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Solution

The fourth proportional to 384,901.80, 577,365.90 and 118,660.20 is: 177,994.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,901.80 : 577,365.90 = 118,660.20 : x
  2. Step 2: Convert to fraction form
    384,901.80/577,365.90 = 118,660.20/x
  3. Step 3: Cross multiply
    384,901.80x = 577,365.90 × 118,660.20
  4. Step 4: Simplify right side
    384,901.80x = 68,510,353,167.18
  5. Step 5: Solve for x
    x = 68,510,353,167.18/384,901.80
  6. Step 6: Final answer
    x = 177,994.37

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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.