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Finding the Fourth Proportional to 274,597.99, 378,927.27 and 153,738.16

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Solution

The fourth proportional to 274,597.99, 378,927.27 and 153,738.16 is: 212,148.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,597.99 : 378,927.27 = 153,738.16 : x
  2. Step 2: Convert to fraction form
    274,597.99/378,927.27 = 153,738.16/x
  3. Step 3: Cross multiply
    274,597.99x = 378,927.27 × 153,738.16
  4. Step 4: Simplify right side
    274,597.99x = 58,255,581,263.62
  5. Step 5: Solve for x
    x = 58,255,581,263.62/274,597.99
  6. Step 6: Final answer
    x = 212,148.61

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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.