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Finding the Fourth Proportional to 306,695.87, 423,210.61 and 226,166.75

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Solution

The fourth proportional to 306,695.87, 423,210.61 and 226,166.75 is: 312,088.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,695.87 : 423,210.61 = 226,166.75 : x
  2. Step 2: Convert to fraction form
    306,695.87/423,210.61 = 226,166.75/x
  3. Step 3: Cross multiply
    306,695.87x = 423,210.61 × 226,166.75
  4. Step 4: Simplify right side
    306,695.87x = 95,716,167,453.90
  5. Step 5: Solve for x
    x = 95,716,167,453.90/306,695.87
  6. Step 6: Final answer
    x = 312,088.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.