Home / 282,908.42-390,405.82-155,584

Finding the Fourth Proportional to 282,908.42, 390,405.82 and 155,584

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Solution

The fourth proportional to 282,908.42, 390,405.82 and 155,584 is: 214,701.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,908.42 : 390,405.82 = 155,584 : x
  2. Step 2: Convert to fraction form
    282,908.42/390,405.82 = 155,584/x
  3. Step 3: Cross multiply
    282,908.42x = 390,405.82 × 155,584
  4. Step 4: Simplify right side
    282,908.42x = 60,740,899,098.88
  5. Step 5: Solve for x
    x = 60,740,899,098.88/282,908.42
  6. Step 6: Final answer
    x = 214,701.63

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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.