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Finding the Fourth Proportional to 174,920.70, 262,381.05 and 139,928.70

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Solution

The fourth proportional to 174,920.70, 262,381.05 and 139,928.70 is: 209,893.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,920.70 : 262,381.05 = 139,928.70 : x
  2. Step 2: Convert to fraction form
    174,920.70/262,381.05 = 139,928.70/x
  3. Step 3: Cross multiply
    174,920.70x = 262,381.05 × 139,928.70
  4. Step 4: Simplify right side
    174,920.70x = 36,714,639,231.14
  5. Step 5: Solve for x
    x = 36,714,639,231.14/174,920.70
  6. Step 6: Final answer
    x = 209,893.05

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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.