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Finding the Fourth Proportional to 210,004.74, 315,001.44 and 67,849.74

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Solution

The fourth proportional to 210,004.74, 315,001.44 and 67,849.74 is: 101,772.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,004.74 : 315,001.44 = 67,849.74 : x
  2. Step 2: Convert to fraction form
    210,004.74/315,001.44 = 67,849.74/x
  3. Step 3: Cross multiply
    210,004.74x = 315,001.44 × 67,849.74
  4. Step 4: Simplify right side
    210,004.74x = 21,372,765,803.63
  5. Step 5: Solve for x
    x = 21,372,765,803.63/210,004.74
  6. Step 6: Final answer
    x = 101,772.78

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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.