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Finding the Fourth Proportional to 347,346.50, 521,019.74 and 98,028.50

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Solution

The fourth proportional to 347,346.50, 521,019.74 and 98,028.50 is: 147,042.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,346.50 : 521,019.74 = 98,028.50 : x
  2. Step 2: Convert to fraction form
    347,346.50/521,019.74 = 98,028.50/x
  3. Step 3: Cross multiply
    347,346.50x = 521,019.74 × 98,028.50
  4. Step 4: Simplify right side
    347,346.50x = 51,074,781,222.56
  5. Step 5: Solve for x
    x = 51,074,781,222.56/347,346.50
  6. Step 6: Final answer
    x = 147,042.74

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1.5x scale

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.