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Finding the Fourth Proportional to 302,451.20, 453,676.80 and 202,918.40

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Solution

The fourth proportional to 302,451.20, 453,676.80 and 202,918.40 is: 304,377.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,451.20 : 453,676.80 = 202,918.40 : x
  2. Step 2: Convert to fraction form
    302,451.20/453,676.80 = 202,918.40/x
  3. Step 3: Cross multiply
    302,451.20x = 453,676.80 × 202,918.40
  4. Step 4: Simplify right side
    302,451.20x = 92,059,370,373.12
  5. Step 5: Solve for x
    x = 92,059,370,373.12/302,451.20
  6. Step 6: Final answer
    x = 304,377.60

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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.