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Finding the Fourth Proportional to 384,498.40, 576,790.80 and 118,256.80

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Solution

The fourth proportional to 384,498.40, 576,790.80 and 118,256.80 is: 177,398.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,498.40 : 576,790.80 = 118,256.80 : x
  2. Step 2: Convert to fraction form
    384,498.40/576,790.80 = 118,256.80/x
  3. Step 3: Cross multiply
    384,498.40x = 576,790.80 × 118,256.80
  4. Step 4: Simplify right side
    384,498.40x = 68,209,434,277.44
  5. Step 5: Solve for x
    x = 68,209,434,277.44/384,498.40
  6. Step 6: Final answer
    x = 177,398.49

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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.