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Finding the Fourth Proportional to 258,060.60, 387,090.90 and 202,073.40

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Solution

The fourth proportional to 258,060.60, 387,090.90 and 202,073.40 is: 303,110.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,060.60 : 387,090.90 = 202,073.40 : x
  2. Step 2: Convert to fraction form
    258,060.60/387,090.90 = 202,073.40/x
  3. Step 3: Cross multiply
    258,060.60x = 387,090.90 × 202,073.40
  4. Step 4: Simplify right side
    258,060.60x = 78,220,774,272.06
  5. Step 5: Solve for x
    x = 78,220,774,272.06/258,060.60
  6. Step 6: Final answer
    x = 303,110.10

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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.