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Finding the Fourth Proportional to 302,511.20, 453,766.80 and 202,978.40

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Solution

The fourth proportional to 302,511.20, 453,766.80 and 202,978.40 is: 304,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,511.20 : 453,766.80 = 202,978.40 : x
  2. Step 2: Convert to fraction form
    302,511.20/453,766.80 = 202,978.40/x
  3. Step 3: Cross multiply
    302,511.20x = 453,766.80 × 202,978.40
  4. Step 4: Simplify right side
    302,511.20x = 92,104,859,037.12
  5. Step 5: Solve for x
    x = 92,104,859,037.12/302,511.20
  6. Step 6: Final answer
    x = 304,467.60

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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.