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Finding the Fourth Proportional to 557,478.72, 836,336.88 and 158,241.60

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Solution

The fourth proportional to 557,478.72, 836,336.88 and 158,241.60 is: 237,396.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,478.72 : 836,336.88 = 158,241.60 : x
  2. Step 2: Convert to fraction form
    557,478.72/836,336.88 = 158,241.60/x
  3. Step 3: Cross multiply
    557,478.72x = 836,336.88 × 158,241.60
  4. Step 4: Simplify right side
    557,478.72x = 132,343,286,030.21
  5. Step 5: Solve for x
    x = 132,343,286,030.21/557,478.72
  6. Step 6: Final answer
    x = 237,396.12

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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.