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Finding the Fourth Proportional to 228,000.80, 319,726 and 228,000.80

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Solution

The fourth proportional to 228,000.80, 319,726 and 228,000.80 is: 319,726.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,000.80 : 319,726 = 228,000.80 : x
  2. Step 2: Convert to fraction form
    228,000.80/319,726 = 228,000.80/x
  3. Step 3: Cross multiply
    228,000.80x = 319,726 × 228,000.80
  4. Step 4: Simplify right side
    228,000.80x = 72,897,783,780.80
  5. Step 5: Solve for x
    x = 72,897,783,780.80/228,000.80
  6. Step 6: Final answer
    x = 319,726.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.