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Finding the Fourth Proportional to 557,681.40, 836,524.89 and 136,957.32

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Solution

The fourth proportional to 557,681.40, 836,524.89 and 136,957.32 is: 205,436.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,681.40 : 836,524.89 = 136,957.32 : x
  2. Step 2: Convert to fraction form
    557,681.40/836,524.89 = 136,957.32/x
  3. Step 3: Cross multiply
    557,681.40x = 836,524.89 × 136,957.32
  4. Step 4: Simplify right side
    557,681.40x = 114,568,207,047.70
  5. Step 5: Solve for x
    x = 114,568,207,047.70/557,681.40
  6. Step 6: Final answer
    x = 205,436.67

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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.