Home / 990,110-1,485,194.16-242,156

Finding the Fourth Proportional to 990,110, 1,485,194.16 and 242,156

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Solution

The fourth proportional to 990,110, 1,485,194.16 and 242,156 is: 363,241.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,110 : 1,485,194.16 = 242,156 : x
  2. Step 2: Convert to fraction form
    990,110/1,485,194.16 = 242,156/x
  3. Step 3: Cross multiply
    990,110x = 1,485,194.16 × 242,156
  4. Step 4: Simplify right side
    990,110x = 359,648,677,008.96
  5. Step 5: Solve for x
    x = 359,648,677,008.96/990,110
  6. Step 6: Final answer
    x = 363,241.13

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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.