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Finding the Fourth Proportional to 328,532.40, 492,814.80 and 171,068.40

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Solution

The fourth proportional to 328,532.40, 492,814.80 and 171,068.40 is: 256,611.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,532.40 : 492,814.80 = 171,068.40 : x
  2. Step 2: Convert to fraction form
    328,532.40/492,814.80 = 171,068.40/x
  3. Step 3: Cross multiply
    328,532.40x = 492,814.80 × 171,068.40
  4. Step 4: Simplify right side
    328,532.40x = 84,305,039,332.32
  5. Step 5: Solve for x
    x = 84,305,039,332.32/328,532.40
  6. Step 6: Final answer
    x = 256,611.04

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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.