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Finding the Fourth Proportional to 328,002.30, 492,003.45 and 248,687.10

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Solution

The fourth proportional to 328,002.30, 492,003.45 and 248,687.10 is: 373,030.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,002.30 : 492,003.45 = 248,687.10 : x
  2. Step 2: Convert to fraction form
    328,002.30/492,003.45 = 248,687.10/x
  3. Step 3: Cross multiply
    328,002.30x = 492,003.45 × 248,687.10
  4. Step 4: Simplify right side
    328,002.30x = 122,354,911,170.50
  5. Step 5: Solve for x
    x = 122,354,911,170.50/328,002.30
  6. Step 6: Final answer
    x = 373,030.65

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Similar ratio
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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.