Home / 212,228.61-318,275.25-70,047.48

Finding the Fourth Proportional to 212,228.61, 318,275.25 and 70,047.48

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Solution

The fourth proportional to 212,228.61, 318,275.25 and 70,047.48 is: 105,048.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,228.61 : 318,275.25 = 70,047.48 : x
  2. Step 2: Convert to fraction form
    212,228.61/318,275.25 = 70,047.48/x
  3. Step 3: Cross multiply
    212,228.61x = 318,275.25 × 70,047.48
  4. Step 4: Simplify right side
    212,228.61x = 22,294,380,336.73
  5. Step 5: Solve for x
    x = 22,294,380,336.73/212,228.61
  6. Step 6: Final answer
    x = 105,048.89

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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.