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Finding the Fourth Proportional to 265,503.93, 398,108.26 and 87,914.07

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Solution

The fourth proportional to 265,503.93, 398,108.26 and 87,914.07 is: 131,822.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,503.93 : 398,108.26 = 87,914.07 : x
  2. Step 2: Convert to fraction form
    265,503.93/398,108.26 = 87,914.07/x
  3. Step 3: Cross multiply
    265,503.93x = 398,108.26 × 87,914.07
  4. Step 4: Simplify right side
    265,503.93x = 34,999,317,437.22
  5. Step 5: Solve for x
    x = 34,999,317,437.22/265,503.93
  6. Step 6: Final answer
    x = 131,822.22

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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.