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Finding the Fourth Proportional to 458,641.04, 688,016.26 and 221,813.54

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Solution

The fourth proportional to 458,641.04, 688,016.26 and 221,813.54 is: 332,746.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,641.04 : 688,016.26 = 221,813.54 : x
  2. Step 2: Convert to fraction form
    458,641.04/688,016.26 = 221,813.54/x
  3. Step 3: Cross multiply
    458,641.04x = 688,016.26 × 221,813.54
  4. Step 4: Simplify right side
    458,641.04x = 152,611,322,208.16
  5. Step 5: Solve for x
    x = 152,611,322,208.16/458,641.04
  6. Step 6: Final answer
    x = 332,746.76

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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.