Home / 282,868.55-390,358.61-155,544.15

Finding the Fourth Proportional to 282,868.55, 390,358.61 and 155,544.15

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Solution

The fourth proportional to 282,868.55, 390,358.61 and 155,544.15 is: 214,650.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,868.55 : 390,358.61 = 155,544.15 : x
  2. Step 2: Convert to fraction form
    282,868.55/390,358.61 = 155,544.15/x
  3. Step 3: Cross multiply
    282,868.55x = 390,358.61 × 155,544.15
  4. Step 4: Simplify right side
    282,868.55x = 60,717,998,187.63
  5. Step 5: Solve for x
    x = 60,717,998,187.63/282,868.55
  6. Step 6: Final answer
    x = 214,650.93

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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.