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Finding the Fourth Proportional to 435,552.12, 653,189.94 and 139,995

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Solution

The fourth proportional to 435,552.12, 653,189.94 and 139,995 is: 209,948.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,552.12 : 653,189.94 = 139,995 : x
  2. Step 2: Convert to fraction form
    435,552.12/653,189.94 = 139,995/x
  3. Step 3: Cross multiply
    435,552.12x = 653,189.94 × 139,995
  4. Step 4: Simplify right side
    435,552.12x = 91,443,325,650.30
  5. Step 5: Solve for x
    x = 91,443,325,650.30/435,552.12
  6. Step 6: Final answer
    x = 209,948.07

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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.