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Finding the Fourth Proportional to 336,648.20, 504,972.30 and 87,330.20

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Solution

The fourth proportional to 336,648.20, 504,972.30 and 87,330.20 is: 130,995.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,648.20 : 504,972.30 = 87,330.20 : x
  2. Step 2: Convert to fraction form
    336,648.20/504,972.30 = 87,330.20/x
  3. Step 3: Cross multiply
    336,648.20x = 504,972.30 × 87,330.20
  4. Step 4: Simplify right side
    336,648.20x = 44,099,331,953.46
  5. Step 5: Solve for x
    x = 44,099,331,953.46/336,648.20
  6. Step 6: Final answer
    x = 130,995.30

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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.