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Finding the Fourth Proportional to 290,553.84, 400,037.40 and 247,941.36

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Solution

The fourth proportional to 290,553.84, 400,037.40 and 247,941.36 is: 341,368.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,553.84 : 400,037.40 = 247,941.36 : x
  2. Step 2: Convert to fraction form
    290,553.84/400,037.40 = 247,941.36/x
  3. Step 3: Cross multiply
    290,553.84x = 400,037.40 × 247,941.36
  4. Step 4: Simplify right side
    290,553.84x = 99,185,817,006.86
  5. Step 5: Solve for x
    x = 99,185,817,006.86/290,553.84
  6. Step 6: Final answer
    x = 341,368.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.