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Finding the Fourth Proportional to 245,313.66, 368,113.25 and 103,148.64

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Solution

The fourth proportional to 245,313.66, 368,113.25 and 103,148.64 is: 154,782.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,313.66 : 368,113.25 = 103,148.64 : x
  2. Step 2: Convert to fraction form
    245,313.66/368,113.25 = 103,148.64/x
  3. Step 3: Cross multiply
    245,313.66x = 368,113.25 × 103,148.64
  4. Step 4: Simplify right side
    245,313.66x = 37,970,379,262.91
  5. Step 5: Solve for x
    x = 37,970,379,262.91/245,313.66
  6. Step 6: Final answer
    x = 154,782.98

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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.