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Finding the Fourth Proportional to 255,969.21, 353,234.67 and 141,248.76

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Solution

The fourth proportional to 255,969.21, 353,234.67 and 141,248.76 is: 194,921.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,969.21 : 353,234.67 = 141,248.76 : x
  2. Step 2: Convert to fraction form
    255,969.21/353,234.67 = 141,248.76/x
  3. Step 3: Cross multiply
    255,969.21x = 353,234.67 × 141,248.76
  4. Step 4: Simplify right side
    255,969.21x = 49,893,960,053.67
  5. Step 5: Solve for x
    x = 49,893,960,053.67/255,969.21
  6. Step 6: Final answer
    x = 194,921.72

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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.