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Finding the Fourth Proportional to 328,170.80, 492,365.40 and 117,825.20

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Solution

The fourth proportional to 328,170.80, 492,365.40 and 117,825.20 is: 176,777.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,170.80 : 492,365.40 = 117,825.20 : x
  2. Step 2: Convert to fraction form
    328,170.80/492,365.40 = 117,825.20/x
  3. Step 3: Cross multiply
    328,170.80x = 492,365.40 × 117,825.20
  4. Step 4: Simplify right side
    328,170.80x = 58,013,051,728.08
  5. Step 5: Solve for x
    x = 58,013,051,728.08/328,170.80
  6. Step 6: Final answer
    x = 176,777.01

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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.