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Finding the Fourth Proportional to 342,291.80, 513,000.30 and 164,415.80

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Solution

The fourth proportional to 342,291.80, 513,000.30 and 164,415.80 is: 246,413.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,291.80 : 513,000.30 = 164,415.80 : x
  2. Step 2: Convert to fraction form
    342,291.80/513,000.30 = 164,415.80/x
  3. Step 3: Cross multiply
    342,291.80x = 513,000.30 × 164,415.80
  4. Step 4: Simplify right side
    342,291.80x = 84,345,354,724.74
  5. Step 5: Solve for x
    x = 84,345,354,724.74/342,291.80
  6. Step 6: Final answer
    x = 246,413.60

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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.