Home / 347,999.34-522,002.09-137,637.30

Finding the Fourth Proportional to 347,999.34, 522,002.09 and 137,637.30

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Solution

The fourth proportional to 347,999.34, 522,002.09 and 137,637.30 is: 206,457.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,999.34 : 522,002.09 = 137,637.30 : x
  2. Step 2: Convert to fraction form
    347,999.34/522,002.09 = 137,637.30/x
  3. Step 3: Cross multiply
    347,999.34x = 522,002.09 × 137,637.30
  4. Step 4: Simplify right side
    347,999.34x = 71,846,958,261.96
  5. Step 5: Solve for x
    x = 71,846,958,261.96/347,999.34
  6. Step 6: Final answer
    x = 206,457.17

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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.