Home / 282,747.62-390,197.04-155,423.18

Finding the Fourth Proportional to 282,747.62, 390,197.04 and 155,423.18

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Solution

The fourth proportional to 282,747.62, 390,197.04 and 155,423.18 is: 214,486.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,747.62 : 390,197.04 = 155,423.18 : x
  2. Step 2: Convert to fraction form
    282,747.62/390,197.04 = 155,423.18/x
  3. Step 3: Cross multiply
    282,747.62x = 390,197.04 × 155,423.18
  4. Step 4: Simplify right side
    282,747.62x = 60,645,664,783.39
  5. Step 5: Solve for x
    x = 60,645,664,783.39/282,747.62
  6. Step 6: Final answer
    x = 214,486.92

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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.