Home / 281,834.70-422,276.58-139,490.16

Finding the Fourth Proportional to 281,834.70, 422,276.58 and 139,490.16

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Solution

The fourth proportional to 281,834.70, 422,276.58 and 139,490.16 is: 208,999.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,834.70 : 422,276.58 = 139,490.16 : x
  2. Step 2: Convert to fraction form
    281,834.70/422,276.58 = 139,490.16/x
  3. Step 3: Cross multiply
    281,834.70x = 422,276.58 × 139,490.16
  4. Step 4: Simplify right side
    281,834.70x = 58,903,427,708.45
  5. Step 5: Solve for x
    x = 58,903,427,708.45/281,834.70
  6. Step 6: Final answer
    x = 208,999.91

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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.