Home / 242,382.42-362,890.10-128,271.75

Finding the Fourth Proportional to 242,382.42, 362,890.10 and 128,271.75

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Solution

The fourth proportional to 242,382.42, 362,890.10 and 128,271.75 is: 192,045.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,382.42 : 362,890.10 = 128,271.75 : x
  2. Step 2: Convert to fraction form
    242,382.42/362,890.10 = 128,271.75/x
  3. Step 3: Cross multiply
    242,382.42x = 362,890.10 × 128,271.75
  4. Step 4: Simplify right side
    242,382.42x = 46,548,545,728.87
  5. Step 5: Solve for x
    x = 46,548,545,728.87/242,382.42
  6. Step 6: Final answer
    x = 192,045.88

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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.