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Finding the Fourth Proportional to 187,368.96, 280,803.90 and 68,930.76

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Solution

The fourth proportional to 187,368.96, 280,803.90 and 68,930.76 is: 103,304.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,368.96 : 280,803.90 = 68,930.76 : x
  2. Step 2: Convert to fraction form
    187,368.96/280,803.90 = 68,930.76/x
  3. Step 3: Cross multiply
    187,368.96x = 280,803.90 × 68,930.76
  4. Step 4: Simplify right side
    187,368.96x = 19,356,026,237.96
  5. Step 5: Solve for x
    x = 19,356,026,237.96/187,368.96
  6. Step 6: Final answer
    x = 103,304.34

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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.