Home / 455,742.48-683,615.40-140,197.20

Finding the Fourth Proportional to 455,742.48, 683,615.40 and 140,197.20

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Solution

The fourth proportional to 455,742.48, 683,615.40 and 140,197.20 is: 210,296.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,742.48 : 683,615.40 = 140,197.20 : x
  2. Step 2: Convert to fraction form
    455,742.48/683,615.40 = 140,197.20/x
  3. Step 3: Cross multiply
    455,742.48x = 683,615.40 × 140,197.20
  4. Step 4: Simplify right side
    455,742.48x = 95,840,964,956.88
  5. Step 5: Solve for x
    x = 95,840,964,956.88/455,742.48
  6. Step 6: Final answer
    x = 210,296.32

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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.