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Finding the Fourth Proportional to 245,779.98, 368,689.86 and 68,287.01

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Solution

The fourth proportional to 245,779.98, 368,689.86 and 68,287.01 is: 102,436.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,779.98 : 368,689.86 = 68,287.01 : x
  2. Step 2: Convert to fraction form
    245,779.98/368,689.86 = 68,287.01/x
  3. Step 3: Cross multiply
    245,779.98x = 368,689.86 × 68,287.01
  4. Step 4: Simplify right side
    245,779.98x = 25,176,726,313.27
  5. Step 5: Solve for x
    x = 25,176,726,313.27/245,779.98
  6. Step 6: Final answer
    x = 102,436.04

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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.