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Finding the Fourth Proportional to 149,486.40, 223,792.20 and 99,622.80

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Solution

The fourth proportional to 149,486.40, 223,792.20 and 99,622.80 is: 149,142.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,486.40 : 223,792.20 = 99,622.80 : x
  2. Step 2: Convert to fraction form
    149,486.40/223,792.20 = 99,622.80/x
  3. Step 3: Cross multiply
    149,486.40x = 223,792.20 × 99,622.80
  4. Step 4: Simplify right side
    149,486.40x = 22,294,805,582.16
  5. Step 5: Solve for x
    x = 22,294,805,582.16/149,486.40
  6. Step 6: Final answer
    x = 149,142.70

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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.