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Finding the Fourth Proportional to 298,967.76, 448,573.14 and 121,488.66

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Solution

The fourth proportional to 298,967.76, 448,573.14 and 121,488.66 is: 182,282.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,967.76 : 448,573.14 = 121,488.66 : x
  2. Step 2: Convert to fraction form
    298,967.76/448,573.14 = 121,488.66/x
  3. Step 3: Cross multiply
    298,967.76x = 448,573.14 × 121,488.66
  4. Step 4: Simplify right side
    298,967.76x = 54,496,549,690.59
  5. Step 5: Solve for x
    x = 54,496,549,690.59/298,967.76
  6. Step 6: Final answer
    x = 182,282.36

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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.