Home / 305,823.60-458,808.30-147,922.20

Finding the Fourth Proportional to 305,823.60, 458,808.30 and 147,922.20

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Solution

The fourth proportional to 305,823.60, 458,808.30 and 147,922.20 is: 221,918.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,823.60 : 458,808.30 = 147,922.20 : x
  2. Step 2: Convert to fraction form
    305,823.60/458,808.30 = 147,922.20/x
  3. Step 3: Cross multiply
    305,823.60x = 458,808.30 × 147,922.20
  4. Step 4: Simplify right side
    305,823.60x = 67,867,933,114.26
  5. Step 5: Solve for x
    x = 67,867,933,114.26/305,823.60
  6. Step 6: Final answer
    x = 221,918.56

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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.