Home / 198,328.52-297,240-92,915.12

Finding the Fourth Proportional to 198,328.52, 297,240 and 92,915.12

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Solution

The fourth proportional to 198,328.52, 297,240 and 92,915.12 is: 139,254.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,328.52 : 297,240 = 92,915.12 : x
  2. Step 2: Convert to fraction form
    198,328.52/297,240 = 92,915.12/x
  3. Step 3: Cross multiply
    198,328.52x = 297,240 × 92,915.12
  4. Step 4: Simplify right side
    198,328.52x = 27,618,090,268.80
  5. Step 5: Solve for x
    x = 27,618,090,268.80/198,328.52
  6. Step 6: Final answer
    x = 139,254.25

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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.