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Finding the Fourth Proportional to 210,481.93, 315,725.60 and 70,240.56

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Solution

The fourth proportional to 210,481.93, 315,725.60 and 70,240.56 is: 105,361.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,481.93 : 315,725.60 = 70,240.56 : x
  2. Step 2: Convert to fraction form
    210,481.93/315,725.60 = 70,240.56/x
  3. Step 3: Cross multiply
    210,481.93x = 315,725.60 × 70,240.56
  4. Step 4: Simplify right side
    210,481.93x = 22,176,742,950.34
  5. Step 5: Solve for x
    x = 22,176,742,950.34/210,481.93
  6. Step 6: Final answer
    x = 105,361.74

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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.