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Finding the Fourth Proportional to 302,456.80, 453,685.20 and 197,394.40

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Solution

The fourth proportional to 302,456.80, 453,685.20 and 197,394.40 is: 296,091.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,456.80 : 453,685.20 = 197,394.40 : x
  2. Step 2: Convert to fraction form
    302,456.80/453,685.20 = 197,394.40/x
  3. Step 3: Cross multiply
    302,456.80x = 453,685.20 × 197,394.40
  4. Step 4: Simplify right side
    302,456.80x = 89,554,917,842.88
  5. Step 5: Solve for x
    x = 89,554,917,842.88/302,456.80
  6. Step 6: Final answer
    x = 296,091.60

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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.