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Finding the Fourth Proportional to 354,978.76, 532,336.84 and 102,173.88

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Solution

The fourth proportional to 354,978.76, 532,336.84 and 102,173.88 is: 153,223.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,978.76 : 532,336.84 = 102,173.88 : x
  2. Step 2: Convert to fraction form
    354,978.76/532,336.84 = 102,173.88/x
  3. Step 3: Cross multiply
    354,978.76x = 532,336.84 × 102,173.88
  4. Step 4: Simplify right side
    354,978.76x = 54,390,920,409.74
  5. Step 5: Solve for x
    x = 54,390,920,409.74/354,978.76
  6. Step 6: Final answer
    x = 153,223.03

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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.