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Finding the Fourth Proportional to 245,108.48, 367,973.82 and 208,405.76

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Solution

The fourth proportional to 245,108.48, 367,973.82 and 208,405.76 is: 312,873.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,108.48 : 367,973.82 = 208,405.76 : x
  2. Step 2: Convert to fraction form
    245,108.48/367,973.82 = 208,405.76/x
  3. Step 3: Cross multiply
    245,108.48x = 367,973.82 × 208,405.76
  4. Step 4: Simplify right side
    245,108.48x = 76,687,863,617.20
  5. Step 5: Solve for x
    x = 76,687,863,617.20/245,108.48
  6. Step 6: Final answer
    x = 312,873.16

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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.