Home / 280,976.88-387,748.08-153,652.56

Finding the Fourth Proportional to 280,976.88, 387,748.08 and 153,652.56

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Solution

The fourth proportional to 280,976.88, 387,748.08 and 153,652.56 is: 212,040.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,976.88 : 387,748.08 = 153,652.56 : x
  2. Step 2: Convert to fraction form
    280,976.88/387,748.08 = 153,652.56/x
  3. Step 3: Cross multiply
    280,976.88x = 387,748.08 × 153,652.56
  4. Step 4: Simplify right side
    280,976.88x = 59,578,485,127.08
  5. Step 5: Solve for x
    x = 59,578,485,127.08/280,976.88
  6. Step 6: Final answer
    x = 212,040.52

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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.