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Finding the Fourth Proportional to 328,538.10, 492,807.15 and 223,562.10

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Solution

The fourth proportional to 328,538.10, 492,807.15 and 223,562.10 is: 335,343.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,538.10 : 492,807.15 = 223,562.10 : x
  2. Step 2: Convert to fraction form
    328,538.10/492,807.15 = 223,562.10/x
  3. Step 3: Cross multiply
    328,538.10x = 492,807.15 × 223,562.10
  4. Step 4: Simplify right side
    328,538.10x = 110,173,001,349.02
  5. Step 5: Solve for x
    x = 110,173,001,349.02/328,538.10
  6. Step 6: Final answer
    x = 335,343.15

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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.