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Finding the Fourth Proportional to 238,417.53, 357,659.51 and 80,603.61

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Solution

The fourth proportional to 238,417.53, 357,659.51 and 80,603.61 is: 120,916.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,417.53 : 357,659.51 = 80,603.61 : x
  2. Step 2: Convert to fraction form
    238,417.53/357,659.51 = 80,603.61/x
  3. Step 3: Cross multiply
    238,417.53x = 357,659.51 × 80,603.61
  4. Step 4: Simplify right side
    238,417.53x = 28,828,647,253.81
  5. Step 5: Solve for x
    x = 28,828,647,253.81/238,417.53
  6. Step 6: Final answer
    x = 120,916.64

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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.