Home / 388,827.96-583,468.74-211,353.72

Finding the Fourth Proportional to 388,827.96, 583,468.74 and 211,353.72

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Solution

The fourth proportional to 388,827.96, 583,468.74 and 211,353.72 is: 317,153.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,827.96 : 583,468.74 = 211,353.72 : x
  2. Step 2: Convert to fraction form
    388,827.96/583,468.74 = 211,353.72/x
  3. Step 3: Cross multiply
    388,827.96x = 583,468.74 × 211,353.72
  4. Step 4: Simplify right side
    388,827.96x = 123,318,288,702.71
  5. Step 5: Solve for x
    x = 123,318,288,702.71/388,827.96
  6. Step 6: Final answer
    x = 317,153.86

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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.