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Finding the Fourth Proportional to 149,646.80, 224,729.40 and 79,662.80

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Solution

The fourth proportional to 149,646.80, 224,729.40 and 79,662.80 is: 119,632.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,646.80 : 224,729.40 = 79,662.80 : x
  2. Step 2: Convert to fraction form
    149,646.80/224,729.40 = 79,662.80/x
  3. Step 3: Cross multiply
    149,646.80x = 224,729.40 × 79,662.80
  4. Step 4: Simplify right side
    149,646.80x = 17,902,573,246.32
  5. Step 5: Solve for x
    x = 17,902,573,246.32/149,646.80
  6. Step 6: Final answer
    x = 119,632.18

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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.