Home / 228,536.10-342,148.05-139,962.60

Finding the Fourth Proportional to 228,536.10, 342,148.05 and 139,962.60

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Solution

The fourth proportional to 228,536.10, 342,148.05 and 139,962.60 is: 209,542.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,536.10 : 342,148.05 = 139,962.60 : x
  2. Step 2: Convert to fraction form
    228,536.10/342,148.05 = 139,962.60/x
  3. Step 3: Cross multiply
    228,536.10x = 342,148.05 × 139,962.60
  4. Step 4: Simplify right side
    228,536.10x = 47,887,930,662.93
  5. Step 5: Solve for x
    x = 47,887,930,662.93/228,536.10
  6. Step 6: Final answer
    x = 209,542.08

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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.