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Finding the Fourth Proportional to 334,702.60, 502,050.70 and 81,984.20

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Solution

The fourth proportional to 334,702.60, 502,050.70 and 81,984.20 is: 122,975.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,702.60 : 502,050.70 = 81,984.20 : x
  2. Step 2: Convert to fraction form
    334,702.60/502,050.70 = 81,984.20/x
  3. Step 3: Cross multiply
    334,702.60x = 502,050.70 × 81,984.20
  4. Step 4: Simplify right side
    334,702.60x = 41,160,224,998.94
  5. Step 5: Solve for x
    x = 41,160,224,998.94/334,702.60
  6. Step 6: Final answer
    x = 122,975.52

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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.