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Finding the Fourth Proportional to 478,392.18, 660,181.23 and 263,532.12

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Solution

The fourth proportional to 478,392.18, 660,181.23 and 263,532.12 is: 363,674.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,392.18 : 660,181.23 = 263,532.12 : x
  2. Step 2: Convert to fraction form
    478,392.18/660,181.23 = 263,532.12/x
  3. Step 3: Cross multiply
    478,392.18x = 660,181.23 × 263,532.12
  4. Step 4: Simplify right side
    478,392.18x = 173,978,959,126.11
  5. Step 5: Solve for x
    x = 173,978,959,126.11/478,392.18
  6. Step 6: Final answer
    x = 363,674.34

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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.