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Finding the Fourth Proportional to 252,437.54, 348,339.56 and 139,253

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Solution

The fourth proportional to 252,437.54, 348,339.56 and 139,253 is: 192,155.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,437.54 : 348,339.56 = 139,253 : x
  2. Step 2: Convert to fraction form
    252,437.54/348,339.56 = 139,253/x
  3. Step 3: Cross multiply
    252,437.54x = 348,339.56 × 139,253
  4. Step 4: Simplify right side
    252,437.54x = 48,507,328,748.68
  5. Step 5: Solve for x
    x = 48,507,328,748.68/252,437.54
  6. Step 6: Final answer
    x = 192,155.77

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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.