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Finding the Fourth Proportional to 398,925.84, 550,442.49 and 237,795.89

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Solution

The fourth proportional to 398,925.84, 550,442.49 and 237,795.89 is: 328,113.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,925.84 : 550,442.49 = 237,795.89 : x
  2. Step 2: Convert to fraction form
    398,925.84/550,442.49 = 237,795.89/x
  3. Step 3: Cross multiply
    398,925.84x = 550,442.49 × 237,795.89
  4. Step 4: Simplify right side
    398,925.84x = 130,892,958,159.42
  5. Step 5: Solve for x
    x = 130,892,958,159.42/398,925.84
  6. Step 6: Final answer
    x = 328,113.51

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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.