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Finding the Fourth Proportional to 518,810.27, 778,239.26 and 158,955.35

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Solution

The fourth proportional to 518,810.27, 778,239.26 and 158,955.35 is: 238,440.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,810.27 : 778,239.26 = 158,955.35 : x
  2. Step 2: Convert to fraction form
    518,810.27/778,239.26 = 158,955.35/x
  3. Step 3: Cross multiply
    518,810.27x = 778,239.26 × 158,955.35
  4. Step 4: Simplify right side
    518,810.27x = 123,705,289,271.07
  5. Step 5: Solve for x
    x = 123,705,289,271.07/518,810.27
  6. Step 6: Final answer
    x = 238,440.33

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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.