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Finding the Fourth Proportional to 281,422.52, 388,363.72 and 152,362.36

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Solution

The fourth proportional to 281,422.52, 388,363.72 and 152,362.36 is: 210,260.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,422.52 : 388,363.72 = 152,362.36 : x
  2. Step 2: Convert to fraction form
    281,422.52/388,363.72 = 152,362.36/x
  3. Step 3: Cross multiply
    281,422.52x = 388,363.72 × 152,362.36
  4. Step 4: Simplify right side
    281,422.52x = 59,172,012,917.58
  5. Step 5: Solve for x
    x = 59,172,012,917.58/281,422.52
  6. Step 6: Final answer
    x = 210,260.40

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1.5x scale

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.