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Finding the Fourth Proportional to 347,608.50, 479,699.73 and 188,632.50

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Solution

The fourth proportional to 347,608.50, 479,699.73 and 188,632.50 is: 260,312.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,608.50 : 479,699.73 = 188,632.50 : x
  2. Step 2: Convert to fraction form
    347,608.50/479,699.73 = 188,632.50/x
  3. Step 3: Cross multiply
    347,608.50x = 479,699.73 × 188,632.50
  4. Step 4: Simplify right side
    347,608.50x = 90,486,959,319.23
  5. Step 5: Solve for x
    x = 90,486,959,319.23/347,608.50
  6. Step 6: Final answer
    x = 260,312.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.