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Finding the Fourth Proportional to 303,653.70, 455,480.55 and 163,685.70

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Solution

The fourth proportional to 303,653.70, 455,480.55 and 163,685.70 is: 245,528.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,653.70 : 455,480.55 = 163,685.70 : x
  2. Step 2: Convert to fraction form
    303,653.70/455,480.55 = 163,685.70/x
  3. Step 3: Cross multiply
    303,653.70x = 455,480.55 × 163,685.70
  4. Step 4: Simplify right side
    303,653.70x = 74,555,652,663.14
  5. Step 5: Solve for x
    x = 74,555,652,663.14/303,653.70
  6. Step 6: Final answer
    x = 245,528.55

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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.