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Finding the Fourth Proportional to 426,289.56, 588,279.62 and 235,303

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Solution

The fourth proportional to 426,289.56, 588,279.62 and 235,303 is: 324,718.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,289.56 : 588,279.62 = 235,303 : x
  2. Step 2: Convert to fraction form
    426,289.56/588,279.62 = 235,303/x
  3. Step 3: Cross multiply
    426,289.56x = 588,279.62 × 235,303
  4. Step 4: Simplify right side
    426,289.56x = 138,423,959,424.86
  5. Step 5: Solve for x
    x = 138,423,959,424.86/426,289.56
  6. Step 6: Final answer
    x = 324,718.16

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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.