Home / 247,840.40-371,350.20-142,475.60

Finding the Fourth Proportional to 247,840.40, 371,350.20 and 142,475.60

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Solution

The fourth proportional to 247,840.40, 371,350.20 and 142,475.60 is: 213,477.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,840.40 : 371,350.20 = 142,475.60 : x
  2. Step 2: Convert to fraction form
    247,840.40/371,350.20 = 142,475.60/x
  3. Step 3: Cross multiply
    247,840.40x = 371,350.20 × 142,475.60
  4. Step 4: Simplify right side
    247,840.40x = 52,908,342,555.12
  5. Step 5: Solve for x
    x = 52,908,342,555.12/247,840.40
  6. Step 6: Final answer
    x = 213,477.47

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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.