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Finding the Fourth Proportional to 215,310.71, 296,820.83 and 151,450.31

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Solution

The fourth proportional to 215,310.71, 296,820.83 and 151,450.31 is: 208,784.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,310.71 : 296,820.83 = 151,450.31 : x
  2. Step 2: Convert to fraction form
    215,310.71/296,820.83 = 151,450.31/x
  3. Step 3: Cross multiply
    215,310.71x = 296,820.83 × 151,450.31
  4. Step 4: Simplify right side
    215,310.71x = 44,953,607,838.64
  5. Step 5: Solve for x
    x = 44,953,607,838.64/215,310.71
  6. Step 6: Final answer
    x = 208,784.82

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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.