Home / 255,433.18-383,149.86-105,508.69

Finding the Fourth Proportional to 255,433.18, 383,149.86 and 105,508.69

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Solution

The fourth proportional to 255,433.18, 383,149.86 and 105,508.69 is: 158,263.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,433.18 : 383,149.86 = 105,508.69 : x
  2. Step 2: Convert to fraction form
    255,433.18/383,149.86 = 105,508.69/x
  3. Step 3: Cross multiply
    255,433.18x = 383,149.86 × 105,508.69
  4. Step 4: Simplify right side
    255,433.18x = 40,425,639,802.28
  5. Step 5: Solve for x
    x = 40,425,639,802.28/255,433.18
  6. Step 6: Final answer
    x = 158,263.07

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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.