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Finding the Fourth Proportional to 288,993.02, 398,890.59 and 168,157.73

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Solution

The fourth proportional to 288,993.02, 398,890.59 and 168,157.73 is: 232,104.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,993.02 : 398,890.59 = 168,157.73 : x
  2. Step 2: Convert to fraction form
    288,993.02/398,890.59 = 168,157.73/x
  3. Step 3: Cross multiply
    288,993.02x = 398,890.59 × 168,157.73
  4. Step 4: Simplify right side
    288,993.02x = 67,076,536,132.76
  5. Step 5: Solve for x
    x = 67,076,536,132.76/288,993.02
  6. Step 6: Final answer
    x = 232,104.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.