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Finding the Fourth Proportional to 513,564.30, 770,455.80 and 158,614.20

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Solution

The fourth proportional to 513,564.30, 770,455.80 and 158,614.20 is: 237,955.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,564.30 : 770,455.80 = 158,614.20 : x
  2. Step 2: Convert to fraction form
    513,564.30/770,455.80 = 158,614.20/x
  3. Step 3: Cross multiply
    513,564.30x = 770,455.80 × 158,614.20
  4. Step 4: Simplify right side
    513,564.30x = 122,205,230,352.36
  5. Step 5: Solve for x
    x = 122,205,230,352.36/513,564.30
  6. Step 6: Final answer
    x = 237,955.07

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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.