Home / 347,584.20-521,570.70-147,870.60

Finding the Fourth Proportional to 347,584.20, 521,570.70 and 147,870.60

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Solution

The fourth proportional to 347,584.20, 521,570.70 and 147,870.60 is: 221,888.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,584.20 : 521,570.70 = 147,870.60 : x
  2. Step 2: Convert to fraction form
    347,584.20/521,570.70 = 147,870.60/x
  3. Step 3: Cross multiply
    347,584.20x = 521,570.70 × 147,870.60
  4. Step 4: Simplify right side
    347,584.20x = 77,124,972,351.42
  5. Step 5: Solve for x
    x = 77,124,972,351.42/347,584.20
  6. Step 6: Final answer
    x = 221,888.60

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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.