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Finding the Fourth Proportional to 304,428.51, 420,105.05 and 168,462.37

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Solution

The fourth proportional to 304,428.51, 420,105.05 and 168,462.37 is: 232,474.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,428.51 : 420,105.05 = 168,462.37 : x
  2. Step 2: Convert to fraction form
    304,428.51/420,105.05 = 168,462.37/x
  3. Step 3: Cross multiply
    304,428.51x = 420,105.05 × 168,462.37
  4. Step 4: Simplify right side
    304,428.51x = 70,771,891,271.03
  5. Step 5: Solve for x
    x = 70,771,891,271.03/304,428.51
  6. Step 6: Final answer
    x = 232,474.58

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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.