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Finding the Fourth Proportional to 242,635.76, 334,838.67 and 140,721.63

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Solution

The fourth proportional to 242,635.76, 334,838.67 and 140,721.63 is: 194,196.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,635.76 : 334,838.67 = 140,721.63 : x
  2. Step 2: Convert to fraction form
    242,635.76/334,838.67 = 140,721.63/x
  3. Step 3: Cross multiply
    242,635.76x = 334,838.67 × 140,721.63
  4. Step 4: Simplify right side
    242,635.76x = 47,119,043,429.43
  5. Step 5: Solve for x
    x = 47,119,043,429.43/242,635.76
  6. Step 6: Final answer
    x = 194,196.62

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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.