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Finding the Fourth Proportional to 358,818.80, 538,228.20 and 303,522.80

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Solution

The fourth proportional to 358,818.80, 538,228.20 and 303,522.80 is: 455,284.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,818.80 : 538,228.20 = 303,522.80 : x
  2. Step 2: Convert to fraction form
    358,818.80/538,228.20 = 303,522.80/x
  3. Step 3: Cross multiply
    358,818.80x = 538,228.20 × 303,522.80
  4. Step 4: Simplify right side
    358,818.80x = 163,364,530,302.96
  5. Step 5: Solve for x
    x = 163,364,530,302.96/358,818.80
  6. Step 6: Final answer
    x = 455,284.20

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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.