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Finding the Fourth Proportional to 398,363, 549,752.46 and 219,526.52

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Solution

The fourth proportional to 398,363, 549,752.46 and 219,526.52 is: 302,952.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,363 : 549,752.46 = 219,526.52 : x
  2. Step 2: Convert to fraction form
    398,363/549,752.46 = 219,526.52/x
  3. Step 3: Cross multiply
    398,363x = 549,752.46 × 219,526.52
  4. Step 4: Simplify right side
    398,363x = 120,685,244,405.24
  5. Step 5: Solve for x
    x = 120,685,244,405.24/398,363
  6. Step 6: Final answer
    x = 302,952.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.