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Finding the Fourth Proportional to 336,520.96, 505,113.98 and 147,112.07

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Solution

The fourth proportional to 336,520.96, 505,113.98 and 147,112.07 is: 220,813.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,520.96 : 505,113.98 = 147,112.07 : x
  2. Step 2: Convert to fraction form
    336,520.96/505,113.98 = 147,112.07/x
  3. Step 3: Cross multiply
    336,520.96x = 505,113.98 × 147,112.07
  4. Step 4: Simplify right side
    336,520.96x = 74,308,359,922.61
  5. Step 5: Solve for x
    x = 74,308,359,922.61/336,520.96
  6. Step 6: Final answer
    x = 220,813.47

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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.