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Finding the Fourth Proportional to 320,244.12, 480,348.72 and 162,468.42

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Solution

The fourth proportional to 320,244.12, 480,348.72 and 162,468.42 is: 243,693.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,244.12 : 480,348.72 = 162,468.42 : x
  2. Step 2: Convert to fraction form
    320,244.12/480,348.72 = 162,468.42/x
  3. Step 3: Cross multiply
    320,244.12x = 480,348.72 × 162,468.42
  4. Step 4: Simplify right side
    320,244.12x = 78,041,497,587.42
  5. Step 5: Solve for x
    x = 78,041,497,587.42/320,244.12
  6. Step 6: Final answer
    x = 243,693.77

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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.