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Finding the Fourth Proportional to 347,777.50, 521,710.80 and 98,459.50

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Solution

The fourth proportional to 347,777.50, 521,710.80 and 98,459.50 is: 147,701.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,777.50 : 521,710.80 = 98,459.50 : x
  2. Step 2: Convert to fraction form
    347,777.50/521,710.80 = 98,459.50/x
  3. Step 3: Cross multiply
    347,777.50x = 521,710.80 × 98,459.50
  4. Step 4: Simplify right side
    347,777.50x = 51,367,384,512.60
  5. Step 5: Solve for x
    x = 51,367,384,512.60/347,777.50
  6. Step 6: Final answer
    x = 147,701.86

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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.