Home / 347,870.50-521,441.56-145,582.51

Finding the Fourth Proportional to 347,870.50, 521,441.56 and 145,582.51

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Solution

The fourth proportional to 347,870.50, 521,441.56 and 145,582.51 is: 218,221.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,870.50 : 521,441.56 = 145,582.51 : x
  2. Step 2: Convert to fraction form
    347,870.50/521,441.56 = 145,582.51/x
  3. Step 3: Cross multiply
    347,870.50x = 521,441.56 × 145,582.51
  4. Step 4: Simplify right side
    347,870.50x = 75,912,770,001.49
  5. Step 5: Solve for x
    x = 75,912,770,001.49/347,870.50
  6. Step 6: Final answer
    x = 218,221.35

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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.