Home / 235,209.21-351,036.27-212,508.81

Finding the Fourth Proportional to 235,209.21, 351,036.27 and 212,508.81

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Solution

The fourth proportional to 235,209.21, 351,036.27 and 212,508.81 is: 317,157.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,209.21 : 351,036.27 = 212,508.81 : x
  2. Step 2: Convert to fraction form
    235,209.21/351,036.27 = 212,508.81/x
  3. Step 3: Cross multiply
    235,209.21x = 351,036.27 × 212,508.81
  4. Step 4: Simplify right side
    235,209.21x = 74,598,300,004.54
  5. Step 5: Solve for x
    x = 74,598,300,004.54/235,209.21
  6. Step 6: Final answer
    x = 317,157.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.