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Finding the Fourth Proportional to 421,937.76, 582,274.74 and 230,963.22

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Solution

The fourth proportional to 421,937.76, 582,274.74 and 230,963.22 is: 318,729.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,937.76 : 582,274.74 = 230,963.22 : x
  2. Step 2: Convert to fraction form
    421,937.76/582,274.74 = 230,963.22/x
  3. Step 3: Cross multiply
    421,937.76x = 582,274.74 × 230,963.22
  4. Step 4: Simplify right side
    421,937.76x = 134,484,048,875.06
  5. Step 5: Solve for x
    x = 134,484,048,875.06/421,937.76
  6. Step 6: Final answer
    x = 318,729.59

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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.