Home / 205,421.10-308,650.05-130,577.10

Finding the Fourth Proportional to 205,421.10, 308,650.05 and 130,577.10

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Solution

The fourth proportional to 205,421.10, 308,650.05 and 130,577.10 is: 196,195.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,421.10 : 308,650.05 = 130,577.10 : x
  2. Step 2: Convert to fraction form
    205,421.10/308,650.05 = 130,577.10/x
  3. Step 3: Cross multiply
    205,421.10x = 308,650.05 × 130,577.10
  4. Step 4: Simplify right side
    205,421.10x = 40,302,628,443.86
  5. Step 5: Solve for x
    x = 40,302,628,443.86/205,421.10
  6. Step 6: Final answer
    x = 196,195.17

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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.