Home / 388,364.93-582,568.15-122,146.20

Finding the Fourth Proportional to 388,364.93, 582,568.15 and 122,146.20

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Solution

The fourth proportional to 388,364.93, 582,568.15 and 122,146.20 is: 183,225.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,364.93 : 582,568.15 = 122,146.20 : x
  2. Step 2: Convert to fraction form
    388,364.93/582,568.15 = 122,146.20/x
  3. Step 3: Cross multiply
    388,364.93x = 582,568.15 × 122,146.20
  4. Step 4: Simplify right side
    388,364.93x = 71,158,482,239.96
  5. Step 5: Solve for x
    x = 71,158,482,239.96/388,364.93
  6. Step 6: Final answer
    x = 183,225.82

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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.