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Finding the Fourth Proportional to 255,989.61, 353,263.19 and 141,269.31

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Solution

The fourth proportional to 255,989.61, 353,263.19 and 141,269.31 is: 194,950.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,989.61 : 353,263.19 = 141,269.31 : x
  2. Step 2: Convert to fraction form
    255,989.61/353,263.19 = 141,269.31/x
  3. Step 3: Cross multiply
    255,989.61x = 353,263.19 × 141,269.31
  4. Step 4: Simplify right side
    255,989.61x = 49,905,246,393.35
  5. Step 5: Solve for x
    x = 49,905,246,393.35/255,989.61
  6. Step 6: Final answer
    x = 194,950.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.