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Finding the Fourth Proportional to 304,816.76, 420,647.07 and 168,859.51

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Solution

The fourth proportional to 304,816.76, 420,647.07 and 168,859.51 is: 233,026.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,816.76 : 420,647.07 = 168,859.51 : x
  2. Step 2: Convert to fraction form
    304,816.76/420,647.07 = 168,859.51/x
  3. Step 3: Cross multiply
    304,816.76x = 420,647.07 × 168,859.51
  4. Step 4: Simplify right side
    304,816.76x = 71,030,258,123.14
  5. Step 5: Solve for x
    x = 71,030,258,123.14/304,816.76
  6. Step 6: Final answer
    x = 233,026.09

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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.