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Finding the Fourth Proportional to 303,555.30, 455,332.95 and 298,889.70

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Solution

The fourth proportional to 303,555.30, 455,332.95 and 298,889.70 is: 448,334.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,555.30 : 455,332.95 = 298,889.70 : x
  2. Step 2: Convert to fraction form
    303,555.30/455,332.95 = 298,889.70/x
  3. Step 3: Cross multiply
    303,555.30x = 455,332.95 × 298,889.70
  4. Step 4: Simplify right side
    303,555.30x = 136,094,328,825.62
  5. Step 5: Solve for x
    x = 136,094,328,825.62/303,555.30
  6. Step 6: Final answer
    x = 448,334.55

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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.