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Finding the Fourth Proportional to 235,445, 352,820.10 and 139,282.76

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Solution

The fourth proportional to 235,445, 352,820.10 and 139,282.76 is: 208,718.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,445 : 352,820.10 = 139,282.76 : x
  2. Step 2: Convert to fraction form
    235,445/352,820.10 = 139,282.76/x
  3. Step 3: Cross multiply
    235,445x = 352,820.10 × 139,282.76
  4. Step 4: Simplify right side
    235,445x = 49,141,757,311.48
  5. Step 5: Solve for x
    x = 49,141,757,311.48/235,445
  6. Step 6: Final answer
    x = 208,718.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.