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Finding the Fourth Proportional to 417,690.40, 576,413.28 and 226,703.80

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Solution

The fourth proportional to 417,690.40, 576,413.28 and 226,703.80 is: 312,851.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,690.40 : 576,413.28 = 226,703.80 : x
  2. Step 2: Convert to fraction form
    417,690.40/576,413.28 = 226,703.80/x
  3. Step 3: Cross multiply
    417,690.40x = 576,413.28 × 226,703.80
  4. Step 4: Simplify right side
    417,690.40x = 130,675,080,946.46
  5. Step 5: Solve for x
    x = 130,675,080,946.46/417,690.40
  6. Step 6: Final answer
    x = 312,851.53

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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.