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Finding the Fourth Proportional to 368,689.68, 553,122 and 119,371.68

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Solution

The fourth proportional to 368,689.68, 553,122 and 119,371.68 is: 179,085.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,689.68 : 553,122 = 119,371.68 : x
  2. Step 2: Convert to fraction form
    368,689.68/553,122 = 119,371.68/x
  3. Step 3: Cross multiply
    368,689.68x = 553,122 × 119,371.68
  4. Step 4: Simplify right side
    368,689.68x = 66,027,102,384.96
  5. Step 5: Solve for x
    x = 66,027,102,384.96/368,689.68
  6. Step 6: Final answer
    x = 179,085.84

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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.