Home / 210,576.28-315,406.81-130,633.84

Finding the Fourth Proportional to 210,576.28, 315,406.81 and 130,633.84

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Solution

The fourth proportional to 210,576.28, 315,406.81 and 130,633.84 is: 195,666.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,576.28 : 315,406.81 = 130,633.84 : x
  2. Step 2: Convert to fraction form
    210,576.28/315,406.81 = 130,633.84/x
  3. Step 3: Cross multiply
    210,576.28x = 315,406.81 × 130,633.84
  4. Step 4: Simplify right side
    210,576.28x = 41,202,802,752.45
  5. Step 5: Solve for x
    x = 41,202,802,752.45/210,576.28
  6. Step 6: Final answer
    x = 195,666.88

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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.