Home / 282,902.46-390,397.60-155,578.05

Finding the Fourth Proportional to 282,902.46, 390,397.60 and 155,578.05

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Solution

The fourth proportional to 282,902.46, 390,397.60 and 155,578.05 is: 214,693.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,902.46 : 390,397.60 = 155,578.05 : x
  2. Step 2: Convert to fraction form
    282,902.46/390,397.60 = 155,578.05/x
  3. Step 3: Cross multiply
    282,902.46x = 390,397.60 × 155,578.05
  4. Step 4: Simplify right side
    282,902.46x = 60,737,297,332.68
  5. Step 5: Solve for x
    x = 60,737,297,332.68/282,902.46
  6. Step 6: Final answer
    x = 214,693.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.