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Finding the Fourth Proportional to 245,363.94, 368,045.46 and 76,897.17

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Solution

The fourth proportional to 245,363.94, 368,045.46 and 76,897.17 is: 115,345.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,363.94 : 368,045.46 = 76,897.17 : x
  2. Step 2: Convert to fraction form
    245,363.94/368,045.46 = 76,897.17/x
  3. Step 3: Cross multiply
    245,363.94x = 368,045.46 × 76,897.17
  4. Step 4: Simplify right side
    245,363.94x = 28,301,654,305.35
  5. Step 5: Solve for x
    x = 28,301,654,305.35/245,363.94
  6. Step 6: Final answer
    x = 115,345.61

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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.