Home / 302,590.20-453,885.30-208,111.80

Finding the Fourth Proportional to 302,590.20, 453,885.30 and 208,111.80

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Solution

The fourth proportional to 302,590.20, 453,885.30 and 208,111.80 is: 312,167.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,590.20 : 453,885.30 = 208,111.80 : x
  2. Step 2: Convert to fraction form
    302,590.20/453,885.30 = 208,111.80/x
  3. Step 3: Cross multiply
    302,590.20x = 453,885.30 × 208,111.80
  4. Step 4: Simplify right side
    302,590.20x = 94,458,886,776.54
  5. Step 5: Solve for x
    x = 94,458,886,776.54/302,590.20
  6. Step 6: Final answer
    x = 312,167.70

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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.