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Finding the Fourth Proportional to 216,974.40, 325,024.20 and 123,370.80

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Solution

The fourth proportional to 216,974.40, 325,024.20 and 123,370.80 is: 184,807.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,974.40 : 325,024.20 = 123,370.80 : x
  2. Step 2: Convert to fraction form
    216,974.40/325,024.20 = 123,370.80/x
  3. Step 3: Cross multiply
    216,974.40x = 325,024.20 × 123,370.80
  4. Step 4: Simplify right side
    216,974.40x = 40,098,495,573.36
  5. Step 5: Solve for x
    x = 40,098,495,573.36/216,974.40
  6. Step 6: Final answer
    x = 184,807.50

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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.