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Finding the Fourth Proportional to 248,557.61, 372,857.95 and 68,643.11

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Solution

The fourth proportional to 248,557.61, 372,857.95 and 68,643.11 is: 102,970.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,557.61 : 372,857.95 = 68,643.11 : x
  2. Step 2: Convert to fraction form
    248,557.61/372,857.95 = 68,643.11/x
  3. Step 3: Cross multiply
    248,557.61x = 372,857.95 × 68,643.11
  4. Step 4: Simplify right side
    248,557.61x = 25,594,130,294.17
  5. Step 5: Solve for x
    x = 25,594,130,294.17/248,557.61
  6. Step 6: Final answer
    x = 102,970.62

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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.