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Finding the Fourth Proportional to 304,633.82, 420,407.80 and 168,667.76

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Solution

The fourth proportional to 304,633.82, 420,407.80 and 168,667.76 is: 232,768.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,633.82 : 420,407.80 = 168,667.76 : x
  2. Step 2: Convert to fraction form
    304,633.82/420,407.80 = 168,667.76/x
  3. Step 3: Cross multiply
    304,633.82x = 420,407.80 × 168,667.76
  4. Step 4: Simplify right side
    304,633.82x = 70,909,239,810.49
  5. Step 5: Solve for x
    x = 70,909,239,810.49/304,633.82
  6. Step 6: Final answer
    x = 232,768.77

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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.