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Finding the Fourth Proportional to 347,572.76, 521,415.38 and 107,630.26

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Solution

The fourth proportional to 347,572.76, 521,415.38 and 107,630.26 is: 161,462.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,572.76 : 521,415.38 = 107,630.26 : x
  2. Step 2: Convert to fraction form
    347,572.76/521,415.38 = 107,630.26/x
  3. Step 3: Cross multiply
    347,572.76x = 521,415.38 × 107,630.26
  4. Step 4: Simplify right side
    347,572.76x = 56,120,072,917.40
  5. Step 5: Solve for x
    x = 56,120,072,917.40/347,572.76
  6. Step 6: Final answer
    x = 161,462.81

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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.