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Finding the Fourth Proportional to 248,353.39, 342,756.85 and 139,475.62

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Solution

The fourth proportional to 248,353.39, 342,756.85 and 139,475.62 is: 192,492.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,353.39 : 342,756.85 = 139,475.62 : x
  2. Step 2: Convert to fraction form
    248,353.39/342,756.85 = 139,475.62/x
  3. Step 3: Cross multiply
    248,353.39x = 342,756.85 × 139,475.62
  4. Step 4: Simplify right side
    248,353.39x = 47,806,222,449.21
  5. Step 5: Solve for x
    x = 47,806,222,449.21/248,353.39
  6. Step 6: Final answer
    x = 192,492.74

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1.5x scale

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.