Home / 212,078.28-317,425.08-155,903.52

Finding the Fourth Proportional to 212,078.28, 317,425.08 and 155,903.52

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Solution

The fourth proportional to 212,078.28, 317,425.08 and 155,903.52 is: 233,346.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,078.28 : 317,425.08 = 155,903.52 : x
  2. Step 2: Convert to fraction form
    212,078.28/317,425.08 = 155,903.52/x
  3. Step 3: Cross multiply
    212,078.28x = 317,425.08 × 155,903.52
  4. Step 4: Simplify right side
    212,078.28x = 49,487,687,308.28
  5. Step 5: Solve for x
    x = 49,487,687,308.28/212,078.28
  6. Step 6: Final answer
    x = 233,346.33

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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.