Home / 283,031.34-390,590.57-153,977.85

Finding the Fourth Proportional to 283,031.34, 390,590.57 and 153,977.85

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Solution

The fourth proportional to 283,031.34, 390,590.57 and 153,977.85 is: 212,493.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,031.34 : 390,590.57 = 153,977.85 : x
  2. Step 2: Convert to fraction form
    283,031.34/390,590.57 = 153,977.85/x
  3. Step 3: Cross multiply
    283,031.34x = 390,590.57 × 153,977.85
  4. Step 4: Simplify right side
    283,031.34x = 60,142,296,198.87
  5. Step 5: Solve for x
    x = 60,142,296,198.87/283,031.34
  6. Step 6: Final answer
    x = 212,493.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.