Home / 205,065.80-307,541.10-64,867.40

Finding the Fourth Proportional to 205,065.80, 307,541.10 and 64,867.40

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Solution

The fourth proportional to 205,065.80, 307,541.10 and 64,867.40 is: 97,282.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,065.80 : 307,541.10 = 64,867.40 : x
  2. Step 2: Convert to fraction form
    205,065.80/307,541.10 = 64,867.40/x
  3. Step 3: Cross multiply
    205,065.80x = 307,541.10 × 64,867.40
  4. Step 4: Simplify right side
    205,065.80x = 19,949,391,550.14
  5. Step 5: Solve for x
    x = 19,949,391,550.14/205,065.80
  6. Step 6: Final answer
    x = 97,282.88

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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.