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Finding the Fourth Proportional to 303,143.76, 454,590.53 and 103,480.25

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Solution

The fourth proportional to 303,143.76, 454,590.53 and 103,480.25 is: 155,177.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,143.76 : 454,590.53 = 103,480.25 : x
  2. Step 2: Convert to fraction form
    303,143.76/454,590.53 = 103,480.25/x
  3. Step 3: Cross multiply
    303,143.76x = 454,590.53 × 103,480.25
  4. Step 4: Simplify right side
    303,143.76x = 47,041,140,814.26
  5. Step 5: Solve for x
    x = 47,041,140,814.26/303,143.76
  6. Step 6: Final answer
    x = 155,177.66

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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.