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Finding the Fourth Proportional to 306,589.63, 423,113.57 and 170,623.16

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Solution

The fourth proportional to 306,589.63, 423,113.57 and 170,623.16 is: 235,471.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,589.63 : 423,113.57 = 170,623.16 : x
  2. Step 2: Convert to fraction form
    306,589.63/423,113.57 = 170,623.16/x
  3. Step 3: Cross multiply
    306,589.63x = 423,113.57 × 170,623.16
  4. Step 4: Simplify right side
    306,589.63x = 72,192,974,352.28
  5. Step 5: Solve for x
    x = 72,192,974,352.28/306,589.63
  6. Step 6: Final answer
    x = 235,471.02

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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.