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Finding the Fourth Proportional to 468,110.70, 645,992.82 and 253,250.64

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Solution

The fourth proportional to 468,110.70, 645,992.82 and 253,250.64 is: 349,485.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,110.70 : 645,992.82 = 253,250.64 : x
  2. Step 2: Convert to fraction form
    468,110.70/645,992.82 = 253,250.64/x
  3. Step 3: Cross multiply
    468,110.70x = 645,992.82 × 253,250.64
  4. Step 4: Simplify right side
    468,110.70x = 163,598,095,100.41
  5. Step 5: Solve for x
    x = 163,598,095,100.41/468,110.70
  6. Step 6: Final answer
    x = 349,485.91

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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.