Home / 205,317.16-307,977.66-65,065

Finding the Fourth Proportional to 205,317.16, 307,977.66 and 65,065

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Solution

The fourth proportional to 205,317.16, 307,977.66 and 65,065 is: 97,598.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,317.16 : 307,977.66 = 65,065 : x
  2. Step 2: Convert to fraction form
    205,317.16/307,977.66 = 65,065/x
  3. Step 3: Cross multiply
    205,317.16x = 307,977.66 × 65,065
  4. Step 4: Simplify right side
    205,317.16x = 20,038,566,447.90
  5. Step 5: Solve for x
    x = 20,038,566,447.90/205,317.16
  6. Step 6: Final answer
    x = 97,598.11

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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.