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Finding the Fourth Proportional to 306,548.55, 423,049.23 and 185,621.63

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Solution

The fourth proportional to 306,548.55, 423,049.23 and 185,621.63 is: 256,165.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,548.55 : 423,049.23 = 185,621.63 : x
  2. Step 2: Convert to fraction form
    306,548.55/423,049.23 = 185,621.63/x
  3. Step 3: Cross multiply
    306,548.55x = 423,049.23 × 185,621.63
  4. Step 4: Simplify right side
    306,548.55x = 78,527,085,527.60
  5. Step 5: Solve for x
    x = 78,527,085,527.60/306,548.55
  6. Step 6: Final answer
    x = 256,165.25

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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.