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Finding the Fourth Proportional to 328,164.40, 492,246.60 and 245,220.40

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Solution

The fourth proportional to 328,164.40, 492,246.60 and 245,220.40 is: 367,830.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,164.40 : 492,246.60 = 245,220.40 : x
  2. Step 2: Convert to fraction form
    328,164.40/492,246.60 = 245,220.40/x
  3. Step 3: Cross multiply
    328,164.40x = 492,246.60 × 245,220.40
  4. Step 4: Simplify right side
    328,164.40x = 120,708,908,150.64
  5. Step 5: Solve for x
    x = 120,708,908,150.64/328,164.40
  6. Step 6: Final answer
    x = 367,830.60

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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.