Home / 388,941.38-583,510.46-108,458.66

Finding the Fourth Proportional to 388,941.38, 583,510.46 and 108,458.66

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Solution

The fourth proportional to 388,941.38, 583,510.46 and 108,458.66 is: 162,715.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,941.38 : 583,510.46 = 108,458.66 : x
  2. Step 2: Convert to fraction form
    388,941.38/583,510.46 = 108,458.66/x
  3. Step 3: Cross multiply
    388,941.38x = 583,510.46 × 108,458.66
  4. Step 4: Simplify right side
    388,941.38x = 63,286,759,941.18
  5. Step 5: Solve for x
    x = 63,286,759,941.18/388,941.38
  6. Step 6: Final answer
    x = 162,715.42

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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.