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Finding the Fourth Proportional to 387,630.30, 581,013.45 and 150,894.30

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Solution

The fourth proportional to 387,630.30, 581,013.45 and 150,894.30 is: 226,173.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,630.30 : 581,013.45 = 150,894.30 : x
  2. Step 2: Convert to fraction form
    387,630.30/581,013.45 = 150,894.30/x
  3. Step 3: Cross multiply
    387,630.30x = 581,013.45 × 150,894.30
  4. Step 4: Simplify right side
    387,630.30x = 87,671,617,828.34
  5. Step 5: Solve for x
    x = 87,671,617,828.34/387,630.30
  6. Step 6: Final answer
    x = 226,173.28

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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.