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Finding the Fourth Proportional to 304,518.14, 420,221.79 and 168,543.98

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Solution

The fourth proportional to 304,518.14, 420,221.79 and 168,543.98 is: 232,583.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,518.14 : 420,221.79 = 168,543.98 : x
  2. Step 2: Convert to fraction form
    304,518.14/420,221.79 = 168,543.98/x
  3. Step 3: Cross multiply
    304,518.14x = 420,221.79 × 168,543.98
  4. Step 4: Simplify right side
    304,518.14x = 70,825,852,969.32
  5. Step 5: Solve for x
    x = 70,825,852,969.32/304,518.14
  6. Step 6: Final answer
    x = 232,583.36

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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.