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Finding the Fourth Proportional to 345,854.67, 518,743.03 and 93,153.65

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Solution

The fourth proportional to 345,854.67, 518,743.03 and 93,153.65 is: 139,719.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,854.67 : 518,743.03 = 93,153.65 : x
  2. Step 2: Convert to fraction form
    345,854.67/518,743.03 = 93,153.65/x
  3. Step 3: Cross multiply
    345,854.67x = 518,743.03 × 93,153.65
  4. Step 4: Simplify right side
    345,854.67x = 48,322,803,597.08
  5. Step 5: Solve for x
    x = 48,322,803,597.08/345,854.67
  6. Step 6: Final answer
    x = 139,719.97

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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.