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Finding the Fourth Proportional to 304,381.85, 420,059.34 and 168,413.59

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Solution

The fourth proportional to 304,381.85, 420,059.34 and 168,413.59 is: 232,417.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,381.85 : 420,059.34 = 168,413.59 : x
  2. Step 2: Convert to fraction form
    304,381.85/420,059.34 = 168,413.59/x
  3. Step 3: Cross multiply
    304,381.85x = 420,059.34 × 168,413.59
  4. Step 4: Simplify right side
    304,381.85x = 70,743,698,520.07
  5. Step 5: Solve for x
    x = 70,743,698,520.07/304,381.85
  6. Step 6: Final answer
    x = 232,417.60

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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.