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Finding the Fourth Proportional to 442,633.68, 610,831.60 and 251,647.12

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Solution

The fourth proportional to 442,633.68, 610,831.60 and 251,647.12 is: 347,271.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,633.68 : 610,831.60 = 251,647.12 : x
  2. Step 2: Convert to fraction form
    442,633.68/610,831.60 = 251,647.12/x
  3. Step 3: Cross multiply
    442,633.68x = 610,831.60 × 251,647.12
  4. Step 4: Simplify right side
    442,633.68x = 153,714,012,944.99
  5. Step 5: Solve for x
    x = 153,714,012,944.99/442,633.68
  6. Step 6: Final answer
    x = 347,271.39

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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.