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Finding the Fourth Proportional to 249,556, 374,109.36 and 91,750.72

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Solution

The fourth proportional to 249,556, 374,109.36 and 91,750.72 is: 137,543.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,556 : 374,109.36 = 91,750.72 : x
  2. Step 2: Convert to fraction form
    249,556/374,109.36 = 91,750.72/x
  3. Step 3: Cross multiply
    249,556x = 374,109.36 × 91,750.72
  4. Step 4: Simplify right side
    249,556x = 34,324,803,138.74
  5. Step 5: Solve for x
    x = 34,324,803,138.74/249,556
  6. Step 6: Final answer
    x = 137,543.49

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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.