Home / 205,143.20-307,714.80-195,466.40

Finding the Fourth Proportional to 205,143.20, 307,714.80 and 195,466.40

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Solution

The fourth proportional to 205,143.20, 307,714.80 and 195,466.40 is: 293,199.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,143.20 : 307,714.80 = 195,466.40 : x
  2. Step 2: Convert to fraction form
    205,143.20/307,714.80 = 195,466.40/x
  3. Step 3: Cross multiply
    205,143.20x = 307,714.80 × 195,466.40
  4. Step 4: Simplify right side
    205,143.20x = 60,147,904,182.72
  5. Step 5: Solve for x
    x = 60,147,904,182.72/205,143.20
  6. Step 6: Final answer
    x = 293,199.60

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1.5x scale

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.