Home / 210,268.36-315,397.68-70,028.20

Finding the Fourth Proportional to 210,268.36, 315,397.68 and 70,028.20

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Solution

The fourth proportional to 210,268.36, 315,397.68 and 70,028.20 is: 105,040.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,268.36 : 315,397.68 = 70,028.20 : x
  2. Step 2: Convert to fraction form
    210,268.36/315,397.68 = 70,028.20/x
  3. Step 3: Cross multiply
    210,268.36x = 315,397.68 × 70,028.20
  4. Step 4: Simplify right side
    210,268.36x = 22,086,731,814.58
  5. Step 5: Solve for x
    x = 22,086,731,814.58/210,268.36
  6. Step 6: Final answer
    x = 105,040.68

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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.