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Finding the Fourth Proportional to 255,920.77, 353,169.66 and 141,206.55

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Solution

The fourth proportional to 255,920.77, 353,169.66 and 141,206.55 is: 194,864.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,920.77 : 353,169.66 = 141,206.55 : x
  2. Step 2: Convert to fraction form
    255,920.77/353,169.66 = 141,206.55/x
  3. Step 3: Cross multiply
    255,920.77x = 353,169.66 × 141,206.55
  4. Step 4: Simplify right side
    255,920.77x = 49,869,869,782.80
  5. Step 5: Solve for x
    x = 49,869,869,782.80/255,920.77
  6. Step 6: Final answer
    x = 194,864.49

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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.