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Finding the Fourth Proportional to 328,808.16, 492,920.64 and 160,234.20

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Solution

The fourth proportional to 328,808.16, 492,920.64 and 160,234.20 is: 240,209.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,808.16 : 492,920.64 = 160,234.20 : x
  2. Step 2: Convert to fraction form
    328,808.16/492,920.64 = 160,234.20/x
  3. Step 3: Cross multiply
    328,808.16x = 492,920.64 × 160,234.20
  4. Step 4: Simplify right side
    328,808.16x = 78,982,744,413.89
  5. Step 5: Solve for x
    x = 78,982,744,413.89/328,808.16
  6. Step 6: Final answer
    x = 240,209.20

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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.