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Finding the Fourth Proportional to 245,890.48, 368,803.41 and 77,411.68

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Solution

The fourth proportional to 245,890.48, 368,803.41 and 77,411.68 is: 116,107.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,890.48 : 368,803.41 = 77,411.68 : x
  2. Step 2: Convert to fraction form
    245,890.48/368,803.41 = 77,411.68/x
  3. Step 3: Cross multiply
    245,890.48x = 368,803.41 × 77,411.68
  4. Step 4: Simplify right side
    245,890.48x = 28,549,691,557.83
  5. Step 5: Solve for x
    x = 28,549,691,557.83/245,890.48
  6. Step 6: Final answer
    x = 116,107.35

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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.