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Finding the Fourth Proportional to 388,886.83, 583,415.87 and 119,017.04

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Solution

The fourth proportional to 388,886.83, 583,415.87 and 119,017.04 is: 178,551.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,886.83 : 583,415.87 = 119,017.04 : x
  2. Step 2: Convert to fraction form
    388,886.83/583,415.87 = 119,017.04/x
  3. Step 3: Cross multiply
    388,886.83x = 583,415.87 × 119,017.04
  4. Step 4: Simplify right side
    388,886.83x = 69,436,427,316.89
  5. Step 5: Solve for x
    x = 69,436,427,316.89/388,886.83
  6. Step 6: Final answer
    x = 178,551.76

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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.