Home / 347,871.50-521,443.06-145,583.51

Finding the Fourth Proportional to 347,871.50, 521,443.06 and 145,583.51

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Solution

The fourth proportional to 347,871.50, 521,443.06 and 145,583.51 is: 218,222.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,871.50 : 521,443.06 = 145,583.51 : x
  2. Step 2: Convert to fraction form
    347,871.50/521,443.06 = 145,583.51/x
  3. Step 3: Cross multiply
    347,871.50x = 521,443.06 × 145,583.51
  4. Step 4: Simplify right side
    347,871.50x = 75,913,510,939.94
  5. Step 5: Solve for x
    x = 75,913,510,939.94/347,871.50
  6. Step 6: Final answer
    x = 218,222.85

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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.