Home / 198,289.80-297,435.24-139,389.12

Finding the Fourth Proportional to 198,289.80, 297,435.24 and 139,389.12

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Solution

The fourth proportional to 198,289.80, 297,435.24 and 139,389.12 is: 209,084.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,289.80 : 297,435.24 = 139,389.12 : x
  2. Step 2: Convert to fraction form
    198,289.80/297,435.24 = 139,389.12/x
  3. Step 3: Cross multiply
    198,289.80x = 297,435.24 × 139,389.12
  4. Step 4: Simplify right side
    198,289.80x = 41,459,236,360.59
  5. Step 5: Solve for x
    x = 41,459,236,360.59/198,289.80
  6. Step 6: Final answer
    x = 209,084.06

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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.