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Finding the Fourth Proportional to 303,434.20, 455,151.30 and 203,901.40

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Solution

The fourth proportional to 303,434.20, 455,151.30 and 203,901.40 is: 305,852.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,434.20 : 455,151.30 = 203,901.40 : x
  2. Step 2: Convert to fraction form
    303,434.20/455,151.30 = 203,901.40/x
  3. Step 3: Cross multiply
    303,434.20x = 455,151.30 × 203,901.40
  4. Step 4: Simplify right side
    303,434.20x = 92,805,987,281.82
  5. Step 5: Solve for x
    x = 92,805,987,281.82/303,434.20
  6. Step 6: Final answer
    x = 305,852.10

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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.