Home / 212,018.40-318,027.60-93,628.80

Finding the Fourth Proportional to 212,018.40, 318,027.60 and 93,628.80

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Solution

The fourth proportional to 212,018.40, 318,027.60 and 93,628.80 is: 140,443.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,018.40 : 318,027.60 = 93,628.80 : x
  2. Step 2: Convert to fraction form
    212,018.40/318,027.60 = 93,628.80/x
  3. Step 3: Cross multiply
    212,018.40x = 318,027.60 × 93,628.80
  4. Step 4: Simplify right side
    212,018.40x = 29,776,542,554.88
  5. Step 5: Solve for x
    x = 29,776,542,554.88/212,018.40
  6. Step 6: Final answer
    x = 140,443.20

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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.