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Finding the Fourth Proportional to 328,302.02, 492,674.61 and 128,597.64

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Solution

The fourth proportional to 328,302.02, 492,674.61 and 128,597.64 is: 192,983.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,302.02 : 492,674.61 = 128,597.64 : x
  2. Step 2: Convert to fraction form
    328,302.02/492,674.61 = 128,597.64/x
  3. Step 3: Cross multiply
    328,302.02x = 492,674.61 × 128,597.64
  4. Step 4: Simplify right side
    328,302.02x = 63,356,790,768.63
  5. Step 5: Solve for x
    x = 63,356,790,768.63/328,302.02
  6. Step 6: Final answer
    x = 192,983.25

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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.