Home / 285,255.18-427,972.28-171,533.88

Finding the Fourth Proportional to 285,255.18, 427,972.28 and 171,533.88

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Solution

The fourth proportional to 285,255.18, 427,972.28 and 171,533.88 is: 257,354.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,255.18 : 427,972.28 = 171,533.88 : x
  2. Step 2: Convert to fraction form
    285,255.18/427,972.28 = 171,533.88/x
  3. Step 3: Cross multiply
    285,255.18x = 427,972.28 × 171,533.88
  4. Step 4: Simplify right side
    285,255.18x = 73,411,744,863.18
  5. Step 5: Solve for x
    x = 73,411,744,863.18/285,255.18
  6. Step 6: Final answer
    x = 257,354.64

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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.