Home / 285,166.38-427,663.17-118,915.50

Finding the Fourth Proportional to 285,166.38, 427,663.17 and 118,915.50

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Solution

The fourth proportional to 285,166.38, 427,663.17 and 118,915.50 is: 178,337.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,166.38 : 427,663.17 = 118,915.50 : x
  2. Step 2: Convert to fraction form
    285,166.38/427,663.17 = 118,915.50/x
  3. Step 3: Cross multiply
    285,166.38x = 427,663.17 × 118,915.50
  4. Step 4: Simplify right side
    285,166.38x = 50,855,779,692.14
  5. Step 5: Solve for x
    x = 50,855,779,692.14/285,166.38
  6. Step 6: Final answer
    x = 178,337.22

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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.