Home / 228,213.80-342,369.30-70,458.20

Finding the Fourth Proportional to 228,213.80, 342,369.30 and 70,458.20

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Solution

The fourth proportional to 228,213.80, 342,369.30 and 70,458.20 is: 105,702.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,213.80 : 342,369.30 = 70,458.20 : x
  2. Step 2: Convert to fraction form
    228,213.80/342,369.30 = 70,458.20/x
  3. Step 3: Cross multiply
    228,213.80x = 342,369.30 × 70,458.20
  4. Step 4: Simplify right side
    228,213.80x = 24,122,724,613.26
  5. Step 5: Solve for x
    x = 24,122,724,613.26/228,213.80
  6. Step 6: Final answer
    x = 105,702.30

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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.