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Finding the Fourth Proportional to 304,370.09, 420,043.10 and 168,401.84

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Solution

The fourth proportional to 304,370.09, 420,043.10 and 168,401.84 is: 232,401.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,370.09 : 420,043.10 = 168,401.84 : x
  2. Step 2: Convert to fraction form
    304,370.09/420,043.10 = 168,401.84/x
  3. Step 3: Cross multiply
    304,370.09x = 420,043.10 × 168,401.84
  4. Step 4: Simplify right side
    304,370.09x = 70,736,028,924.34
  5. Step 5: Solve for x
    x = 70,736,028,924.34/304,370.09
  6. Step 6: Final answer
    x = 232,401.38

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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.