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Finding the Fourth Proportional to 180,393.44, 248,875.81 and 139,012.63

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Solution

The fourth proportional to 180,393.44, 248,875.81 and 139,012.63 is: 191,785.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,393.44 : 248,875.81 = 139,012.63 : x
  2. Step 2: Convert to fraction form
    180,393.44/248,875.81 = 139,012.63/x
  3. Step 3: Cross multiply
    180,393.44x = 248,875.81 × 139,012.63
  4. Step 4: Simplify right side
    180,393.44x = 34,596,879,921.76
  5. Step 5: Solve for x
    x = 34,596,879,921.76/180,393.44
  6. Step 6: Final answer
    x = 191,785.69

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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.