Home / 207,320.45-310,980.32-65,178.15

Finding the Fourth Proportional to 207,320.45, 310,980.32 and 65,178.15

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Solution

The fourth proportional to 207,320.45, 310,980.32 and 65,178.15 is: 97,767.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,320.45 : 310,980.32 = 65,178.15 : x
  2. Step 2: Convert to fraction form
    207,320.45/310,980.32 = 65,178.15/x
  3. Step 3: Cross multiply
    207,320.45x = 310,980.32 × 65,178.15
  4. Step 4: Simplify right side
    207,320.45x = 20,269,123,025.67
  5. Step 5: Solve for x
    x = 20,269,123,025.67/207,320.45
  6. Step 6: Final answer
    x = 97,767.12

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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.