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Finding the Fourth Proportional to 229,239.20, 343,858.80 and 71,466.40

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Solution

The fourth proportional to 229,239.20, 343,858.80 and 71,466.40 is: 107,199.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,239.20 : 343,858.80 = 71,466.40 : x
  2. Step 2: Convert to fraction form
    229,239.20/343,858.80 = 71,466.40/x
  3. Step 3: Cross multiply
    229,239.20x = 343,858.80 × 71,466.40
  4. Step 4: Simplify right side
    229,239.20x = 24,574,350,544.32
  5. Step 5: Solve for x
    x = 24,574,350,544.32/229,239.20
  6. Step 6: Final answer
    x = 107,199.60

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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.