Home / 282,723.75-390,164.35-155,411.19

Finding the Fourth Proportional to 282,723.75, 390,164.35 and 155,411.19

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Solution

The fourth proportional to 282,723.75, 390,164.35 and 155,411.19 is: 214,470.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,723.75 : 390,164.35 = 155,411.19 : x
  2. Step 2: Convert to fraction form
    282,723.75/390,164.35 = 155,411.19/x
  3. Step 3: Cross multiply
    282,723.75x = 390,164.35 × 155,411.19
  4. Step 4: Simplify right side
    282,723.75x = 60,635,907,293.02
  5. Step 5: Solve for x
    x = 60,635,907,293.02/282,723.75
  6. Step 6: Final answer
    x = 214,470.51

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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.