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Finding the Fourth Proportional to 274,363.66, 378,636.57 and 153,497.74

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Solution

The fourth proportional to 274,363.66, 378,636.57 and 153,497.74 is: 211,835.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,363.66 : 378,636.57 = 153,497.74 : x
  2. Step 2: Convert to fraction form
    274,363.66/378,636.57 = 153,497.74/x
  3. Step 3: Cross multiply
    274,363.66x = 378,636.57 × 153,497.74
  4. Step 4: Simplify right side
    274,363.66x = 58,119,857,776.35
  5. Step 5: Solve for x
    x = 58,119,857,776.35/274,363.66
  6. Step 6: Final answer
    x = 211,835.12

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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.