Home / 434,348.40-651,047.40-153,721.20

Finding the Fourth Proportional to 434,348.40, 651,047.40 and 153,721.20

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Solution

The fourth proportional to 434,348.40, 651,047.40 and 153,721.20 is: 230,413.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,348.40 : 651,047.40 = 153,721.20 : x
  2. Step 2: Convert to fraction form
    434,348.40/651,047.40 = 153,721.20/x
  3. Step 3: Cross multiply
    434,348.40x = 651,047.40 × 153,721.20
  4. Step 4: Simplify right side
    434,348.40x = 100,079,787,584.88
  5. Step 5: Solve for x
    x = 100,079,787,584.88/434,348.40
  6. Step 6: Final answer
    x = 230,413.62

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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.