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Finding the Fourth Proportional to 330,159.80, 495,093.90 and 130,413.80

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Solution

The fourth proportional to 330,159.80, 495,093.90 and 130,413.80 is: 195,563.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,159.80 : 495,093.90 = 130,413.80 : x
  2. Step 2: Convert to fraction form
    330,159.80/495,093.90 = 130,413.80/x
  3. Step 3: Cross multiply
    330,159.80x = 495,093.90 × 130,413.80
  4. Step 4: Simplify right side
    330,159.80x = 64,567,076,855.82
  5. Step 5: Solve for x
    x = 64,567,076,855.82/330,159.80
  6. Step 6: Final answer
    x = 195,563.11

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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.