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Finding the Fourth Proportional to 360,068.96, 496,891.40 and 198,913.47

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Solution

The fourth proportional to 360,068.96, 496,891.40 and 198,913.47 is: 274,498.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,068.96 : 496,891.40 = 198,913.47 : x
  2. Step 2: Convert to fraction form
    360,068.96/496,891.40 = 198,913.47/x
  3. Step 3: Cross multiply
    360,068.96x = 496,891.40 × 198,913.47
  4. Step 4: Simplify right side
    360,068.96x = 98,838,391,592.59
  5. Step 5: Solve for x
    x = 98,838,391,592.59/360,068.96
  6. Step 6: Final answer
    x = 274,498.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.