Home / 388,835.60-583,181.40-108,294.80

Finding the Fourth Proportional to 388,835.60, 583,181.40 and 108,294.80

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Solution

The fourth proportional to 388,835.60, 583,181.40 and 108,294.80 is: 162,422.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,835.60 : 583,181.40 = 108,294.80 : x
  2. Step 2: Convert to fraction form
    388,835.60/583,181.40 = 108,294.80/x
  3. Step 3: Cross multiply
    388,835.60x = 583,181.40 × 108,294.80
  4. Step 4: Simplify right side
    388,835.60x = 63,155,513,076.72
  5. Step 5: Solve for x
    x = 63,155,513,076.72/388,835.60
  6. Step 6: Final answer
    x = 162,422.15

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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.