Home / 281,054.45-387,864.38-153,730.06

Finding the Fourth Proportional to 281,054.45, 387,864.38 and 153,730.06

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Solution

The fourth proportional to 281,054.45, 387,864.38 and 153,730.06 is: 212,152.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,054.45 : 387,864.38 = 153,730.06 : x
  2. Step 2: Convert to fraction form
    281,054.45/387,864.38 = 153,730.06/x
  3. Step 3: Cross multiply
    281,054.45x = 387,864.38 × 153,730.06
  4. Step 4: Simplify right side
    281,054.45x = 59,626,414,409.26
  5. Step 5: Solve for x
    x = 59,626,414,409.26/281,054.45
  6. Step 6: Final answer
    x = 212,152.54

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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.