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Finding the Fourth Proportional to 304,365.54, 420,013.58 and 168,398.94

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Solution

The fourth proportional to 304,365.54, 420,013.58 and 168,398.94 is: 232,384.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,365.54 : 420,013.58 = 168,398.94 : x
  2. Step 2: Convert to fraction form
    304,365.54/420,013.58 = 168,398.94/x
  3. Step 3: Cross multiply
    304,365.54x = 420,013.58 × 168,398.94
  4. Step 4: Simplify right side
    304,365.54x = 70,729,840,815.61
  5. Step 5: Solve for x
    x = 70,729,840,815.61/304,365.54
  6. Step 6: Final answer
    x = 232,384.52

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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.