Home / 282,916.52-390,415.86-155,591.72

Finding the Fourth Proportional to 282,916.52, 390,415.86 and 155,591.72

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Solution

The fourth proportional to 282,916.52, 390,415.86 and 155,591.72 is: 214,711.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,916.52 : 390,415.86 = 155,591.72 : x
  2. Step 2: Convert to fraction form
    282,916.52/390,415.86 = 155,591.72/x
  3. Step 3: Cross multiply
    282,916.52x = 390,415.86 × 155,591.72
  4. Step 4: Simplify right side
    282,916.52x = 60,745,475,172.68
  5. Step 5: Solve for x
    x = 60,745,475,172.68/282,916.52
  6. Step 6: Final answer
    x = 214,711.66

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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.