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Finding the Fourth Proportional to 216,280.00, 298,430.12 and 120,787.07

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Solution

The fourth proportional to 216,280.00, 298,430.12 and 120,787.07 is: 166,665.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,280.00 : 298,430.12 = 120,787.07 : x
  2. Step 2: Convert to fraction form
    216,280.00/298,430.12 = 120,787.07/x
  3. Step 3: Cross multiply
    216,280.00x = 298,430.12 × 120,787.07
  4. Step 4: Simplify right side
    216,280.00x = 36,046,499,190.61
  5. Step 5: Solve for x
    x = 36,046,499,190.61/216,280.00
  6. Step 6: Final answer
    x = 166,665.90

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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.