Home / 313,275.24-469,910.70-76,621.32

Finding the Fourth Proportional to 313,275.24, 469,910.70 and 76,621.32

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Solution

The fourth proportional to 313,275.24, 469,910.70 and 76,621.32 is: 114,931.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,275.24 : 469,910.70 = 76,621.32 : x
  2. Step 2: Convert to fraction form
    313,275.24/469,910.70 = 76,621.32/x
  3. Step 3: Cross multiply
    313,275.24x = 469,910.70 × 76,621.32
  4. Step 4: Simplify right side
    313,275.24x = 36,005,178,116.12
  5. Step 5: Solve for x
    x = 36,005,178,116.12/313,275.24
  6. Step 6: Final answer
    x = 114,931.45

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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.