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Finding the Fourth Proportional to 371,710.72, 557,254.80 and 259,060.48

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Solution

The fourth proportional to 371,710.72, 557,254.80 and 259,060.48 is: 388,373.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,710.72 : 557,254.80 = 259,060.48 : x
  2. Step 2: Convert to fraction form
    371,710.72/557,254.80 = 259,060.48/x
  3. Step 3: Cross multiply
    371,710.72x = 557,254.80 × 259,060.48
  4. Step 4: Simplify right side
    371,710.72x = 144,362,695,970.30
  5. Step 5: Solve for x
    x = 144,362,695,970.30/371,710.72
  6. Step 6: Final answer
    x = 388,373.78

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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.