Home / 305,867.10-458,800.65-221,448.90

Finding the Fourth Proportional to 305,867.10, 458,800.65 and 221,448.90

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Solution

The fourth proportional to 305,867.10, 458,800.65 and 221,448.90 is: 332,173.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,867.10 : 458,800.65 = 221,448.90 : x
  2. Step 2: Convert to fraction form
    305,867.10/458,800.65 = 221,448.90/x
  3. Step 3: Cross multiply
    305,867.10x = 458,800.65 × 221,448.90
  4. Step 4: Simplify right side
    305,867.10x = 101,600,899,261.79
  5. Step 5: Solve for x
    x = 101,600,899,261.79/305,867.10
  6. Step 6: Final answer
    x = 332,173.35

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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.