Home / 280,976.99-387,748.04-153,652.55

Finding the Fourth Proportional to 280,976.99, 387,748.04 and 153,652.55

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Solution

The fourth proportional to 280,976.99, 387,748.04 and 153,652.55 is: 212,040.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,976.99 : 387,748.04 = 153,652.55 : x
  2. Step 2: Convert to fraction form
    280,976.99/387,748.04 = 153,652.55/x
  3. Step 3: Cross multiply
    280,976.99x = 387,748.04 × 153,652.55
  4. Step 4: Simplify right side
    280,976.99x = 59,578,475,304.61
  5. Step 5: Solve for x
    x = 59,578,475,304.61/280,976.99
  6. Step 6: Final answer
    x = 212,040.41

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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.