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Finding the Fourth Proportional to 180,339.70, 248,815.05 and 103,856.77

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Solution

The fourth proportional to 180,339.70, 248,815.05 and 103,856.77 is: 143,291.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,339.70 : 248,815.05 = 103,856.77 : x
  2. Step 2: Convert to fraction form
    180,339.70/248,815.05 = 103,856.77/x
  3. Step 3: Cross multiply
    180,339.70x = 248,815.05 × 103,856.77
  4. Step 4: Simplify right side
    180,339.70x = 25,841,127,420.39
  5. Step 5: Solve for x
    x = 25,841,127,420.39/180,339.70
  6. Step 6: Final answer
    x = 143,291.40

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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.