Home / 280,039.07-420,132.42-146,883.58

Finding the Fourth Proportional to 280,039.07, 420,132.42 and 146,883.58

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Solution

The fourth proportional to 280,039.07, 420,132.42 and 146,883.58 is: 220,364.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,039.07 : 420,132.42 = 146,883.58 : x
  2. Step 2: Convert to fraction form
    280,039.07/420,132.42 = 146,883.58/x
  3. Step 3: Cross multiply
    280,039.07x = 420,132.42 × 146,883.58
  4. Step 4: Simplify right side
    280,039.07x = 61,710,552,873.33
  5. Step 5: Solve for x
    x = 61,710,552,873.33/280,039.07
  6. Step 6: Final answer
    x = 220,364.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.