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Finding the Fourth Proportional to 355,702.54, 533,553.78 and 145,340.26

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Solution

The fourth proportional to 355,702.54, 533,553.78 and 145,340.26 is: 218,010.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,702.54 : 533,553.78 = 145,340.26 : x
  2. Step 2: Convert to fraction form
    355,702.54/533,553.78 = 145,340.26/x
  3. Step 3: Cross multiply
    355,702.54x = 533,553.78 × 145,340.26
  4. Step 4: Simplify right side
    355,702.54x = 77,546,845,109.18
  5. Step 5: Solve for x
    x = 77,546,845,109.18/355,702.54
  6. Step 6: Final answer
    x = 218,010.38

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1.5x scale

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.