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Finding the Fourth Proportional to 245,309.14, 368,106.47 and 103,144.11

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Solution

The fourth proportional to 245,309.14, 368,106.47 and 103,144.11 is: 154,776.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,309.14 : 368,106.47 = 103,144.11 : x
  2. Step 2: Convert to fraction form
    245,309.14/368,106.47 = 103,144.11/x
  3. Step 3: Cross multiply
    245,309.14x = 368,106.47 × 103,144.11
  4. Step 4: Simplify right side
    245,309.14x = 37,968,013,717.67
  5. Step 5: Solve for x
    x = 37,968,013,717.67/245,309.14
  6. Step 6: Final answer
    x = 154,776.19

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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.