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Finding the Fourth Proportional to 216,509.29, 298,773.41 and 118,390.73

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Solution

The fourth proportional to 216,509.29, 298,773.41 and 118,390.73 is: 163,374.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,509.29 : 298,773.41 = 118,390.73 : x
  2. Step 2: Convert to fraction form
    216,509.29/298,773.41 = 118,390.73/x
  3. Step 3: Cross multiply
    216,509.29x = 298,773.41 × 118,390.73
  4. Step 4: Simplify right side
    216,509.29x = 35,372,000,028.67
  5. Step 5: Solve for x
    x = 35,372,000,028.67/216,509.29
  6. Step 6: Final answer
    x = 163,374.05

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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.