Home / 198,310.47-297,509.64-65,185.35

Finding the Fourth Proportional to 198,310.47, 297,509.64 and 65,185.35

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Solution

The fourth proportional to 198,310.47, 297,509.64 and 65,185.35 is: 97,792.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,310.47 : 297,509.64 = 65,185.35 : x
  2. Step 2: Convert to fraction form
    198,310.47/297,509.64 = 65,185.35/x
  3. Step 3: Cross multiply
    198,310.47x = 297,509.64 × 65,185.35
  4. Step 4: Simplify right side
    198,310.47x = 19,393,270,011.77
  5. Step 5: Solve for x
    x = 19,393,270,011.77/198,310.47
  6. Step 6: Final answer
    x = 97,792.47

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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.