Home / 282,975.28-390,497.60-155,650.80

Finding the Fourth Proportional to 282,975.28, 390,497.60 and 155,650.80

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Solution

The fourth proportional to 282,975.28, 390,497.60 and 155,650.80 is: 214,793.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,975.28 : 390,497.60 = 155,650.80 : x
  2. Step 2: Convert to fraction form
    282,975.28/390,497.60 = 155,650.80/x
  3. Step 3: Cross multiply
    282,975.28x = 390,497.60 × 155,650.80
  4. Step 4: Simplify right side
    282,975.28x = 60,781,263,838.08
  5. Step 5: Solve for x
    x = 60,781,263,838.08/282,975.28
  6. Step 6: Final answer
    x = 214,793.55

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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.