Home / 990,108-1,485,191.16-242,154

Finding the Fourth Proportional to 990,108, 1,485,191.16 and 242,154

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Solution

The fourth proportional to 990,108, 1,485,191.16 and 242,154 is: 363,238.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,108 : 1,485,191.16 = 242,154 : x
  2. Step 2: Convert to fraction form
    990,108/1,485,191.16 = 242,154/x
  3. Step 3: Cross multiply
    990,108x = 1,485,191.16 × 242,154
  4. Step 4: Simplify right side
    990,108x = 359,644,980,158.64
  5. Step 5: Solve for x
    x = 359,644,980,158.64/990,108
  6. Step 6: Final answer
    x = 363,238.13

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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.