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Finding the Fourth Proportional to 299,478.55, 447,853.36 and 223,630.35

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Solution

The fourth proportional to 299,478.55, 447,853.36 and 223,630.35 is: 334,426.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,478.55 : 447,853.36 = 223,630.35 : x
  2. Step 2: Convert to fraction form
    299,478.55/447,853.36 = 223,630.35/x
  3. Step 3: Cross multiply
    299,478.55x = 447,853.36 × 223,630.35
  4. Step 4: Simplify right side
    299,478.55x = 100,153,604,345.43
  5. Step 5: Solve for x
    x = 100,153,604,345.43/299,478.55
  6. Step 6: Final answer
    x = 334,426.64

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1.5x scale

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.