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Finding the Fourth Proportional to 255,602.28, 352,729.56 and 139,315.62

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Solution

The fourth proportional to 255,602.28, 352,729.56 and 139,315.62 is: 192,254.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,602.28 : 352,729.56 = 139,315.62 : x
  2. Step 2: Convert to fraction form
    255,602.28/352,729.56 = 139,315.62/x
  3. Step 3: Cross multiply
    255,602.28x = 352,729.56 × 139,315.62
  4. Step 4: Simplify right side
    255,602.28x = 49,140,737,343.73
  5. Step 5: Solve for x
    x = 49,140,737,343.73/255,602.28
  6. Step 6: Final answer
    x = 192,254.69

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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.