Home / 230,385.15-317,946.06-139,749.66

Finding the Fourth Proportional to 230,385.15, 317,946.06 and 139,749.66

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Solution

The fourth proportional to 230,385.15, 317,946.06 and 139,749.66 is: 192,863.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,385.15 : 317,946.06 = 139,749.66 : x
  2. Step 2: Convert to fraction form
    230,385.15/317,946.06 = 139,749.66/x
  3. Step 3: Cross multiply
    230,385.15x = 317,946.06 × 139,749.66
  4. Step 4: Simplify right side
    230,385.15x = 44,432,853,783.34
  5. Step 5: Solve for x
    x = 44,432,853,783.34/230,385.15
  6. Step 6: Final answer
    x = 192,863.36

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1.5x scale

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.