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Finding the Fourth Proportional to 153,018.54, 228,823.17 and 145,553.58

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Solution

The fourth proportional to 153,018.54, 228,823.17 and 145,553.58 is: 217,660.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,018.54 : 228,823.17 = 145,553.58 : x
  2. Step 2: Convert to fraction form
    153,018.54/228,823.17 = 145,553.58/x
  3. Step 3: Cross multiply
    153,018.54x = 228,823.17 × 145,553.58
  4. Step 4: Simplify right side
    153,018.54x = 33,306,031,580.45
  5. Step 5: Solve for x
    x = 33,306,031,580.45/153,018.54
  6. Step 6: Final answer
    x = 217,660.11

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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.