Home / 282,928.25-390,443.58-153,867.95

Finding the Fourth Proportional to 282,928.25, 390,443.58 and 153,867.95

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Solution

The fourth proportional to 282,928.25, 390,443.58 and 153,867.95 is: 212,339.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,928.25 : 390,443.58 = 153,867.95 : x
  2. Step 2: Convert to fraction form
    282,928.25/390,443.58 = 153,867.95/x
  3. Step 3: Cross multiply
    282,928.25x = 390,443.58 × 153,867.95
  4. Step 4: Simplify right side
    282,928.25x = 60,076,753,245.26
  5. Step 5: Solve for x
    x = 60,076,753,245.26/282,928.25
  6. Step 6: Final answer
    x = 212,339.18

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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.