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Finding the Fourth Proportional to 243,001.20, 364,501.80 and 217,413.30

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Solution

The fourth proportional to 243,001.20, 364,501.80 and 217,413.30 is: 326,119.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,001.20 : 364,501.80 = 217,413.30 : x
  2. Step 2: Convert to fraction form
    243,001.20/364,501.80 = 217,413.30/x
  3. Step 3: Cross multiply
    243,001.20x = 364,501.80 × 217,413.30
  4. Step 4: Simplify right side
    243,001.20x = 79,247,539,193.94
  5. Step 5: Solve for x
    x = 79,247,539,193.94/243,001.20
  6. Step 6: Final answer
    x = 326,119.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.