Home / 205,460.10-308,420.55-158,919.30

Finding the Fourth Proportional to 205,460.10, 308,420.55 and 158,919.30

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Solution

The fourth proportional to 205,460.10, 308,420.55 and 158,919.30 is: 238,557.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,460.10 : 308,420.55 = 158,919.30 : x
  2. Step 2: Convert to fraction form
    205,460.10/308,420.55 = 158,919.30/x
  3. Step 3: Cross multiply
    205,460.10x = 308,420.55 × 158,919.30
  4. Step 4: Simplify right side
    205,460.10x = 49,013,977,911.62
  5. Step 5: Solve for x
    x = 49,013,977,911.62/205,460.10
  6. Step 6: Final answer
    x = 238,557.16

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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.