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Finding the Fourth Proportional to 245,315.77, 368,116.40 and 103,150.76

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Solution

The fourth proportional to 245,315.77, 368,116.40 and 103,150.76 is: 154,786.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,315.77 : 368,116.40 = 103,150.76 : x
  2. Step 2: Convert to fraction form
    245,315.77/368,116.40 = 103,150.76/x
  3. Step 3: Cross multiply
    245,315.77x = 368,116.40 × 103,150.76
  4. Step 4: Simplify right side
    245,315.77x = 37,971,484,845.76
  5. Step 5: Solve for x
    x = 37,971,484,845.76/245,315.77
  6. Step 6: Final answer
    x = 154,786.16

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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.