Home / 280,356.78-420,524.22-93,368.28

Finding the Fourth Proportional to 280,356.78, 420,524.22 and 93,368.28

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Solution

The fourth proportional to 280,356.78, 420,524.22 and 93,368.28 is: 140,048.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,356.78 : 420,524.22 = 93,368.28 : x
  2. Step 2: Convert to fraction form
    280,356.78/420,524.22 = 93,368.28/x
  3. Step 3: Cross multiply
    280,356.78x = 420,524.22 × 93,368.28
  4. Step 4: Simplify right side
    280,356.78x = 39,263,623,119.74
  5. Step 5: Solve for x
    x = 39,263,623,119.74/280,356.78
  6. Step 6: Final answer
    x = 140,048.77

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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.