Home / 285,281.52-393,564.72-172,041.36

Finding the Fourth Proportional to 285,281.52, 393,564.72 and 172,041.36

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Solution

The fourth proportional to 285,281.52, 393,564.72 and 172,041.36 is: 237,342.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,281.52 : 393,564.72 = 172,041.36 : x
  2. Step 2: Convert to fraction form
    285,281.52/393,564.72 = 172,041.36/x
  3. Step 3: Cross multiply
    285,281.52x = 393,564.72 × 172,041.36
  4. Step 4: Simplify right side
    285,281.52x = 67,709,409,676.82
  5. Step 5: Solve for x
    x = 67,709,409,676.82/285,281.52
  6. Step 6: Final answer
    x = 237,342.43

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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.