Home / 287,137.48-430,768.50-87,452.64

Finding the Fourth Proportional to 287,137.48, 430,768.50 and 87,452.64

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Solution

The fourth proportional to 287,137.48, 430,768.50 and 87,452.64 is: 131,197.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,137.48 : 430,768.50 = 87,452.64 : x
  2. Step 2: Convert to fraction form
    287,137.48/430,768.50 = 87,452.64/x
  3. Step 3: Cross multiply
    287,137.48x = 430,768.50 × 87,452.64
  4. Step 4: Simplify right side
    287,137.48x = 37,671,842,553.84
  5. Step 5: Solve for x
    x = 37,671,842,553.84/287,137.48
  6. Step 6: Final answer
    x = 131,197.93

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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.