Home / 328,173.42-492,063.03-128,255.58

Finding the Fourth Proportional to 328,173.42, 492,063.03 and 128,255.58

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Solution

The fourth proportional to 328,173.42, 492,063.03 and 128,255.58 is: 192,306.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,173.42 : 492,063.03 = 128,255.58 : x
  2. Step 2: Convert to fraction form
    328,173.42/492,063.03 = 128,255.58/x
  3. Step 3: Cross multiply
    328,173.42x = 492,063.03 × 128,255.58
  4. Step 4: Simplify right side
    328,173.42x = 63,109,829,309.21
  5. Step 5: Solve for x
    x = 63,109,829,309.21/328,173.42
  6. Step 6: Final answer
    x = 192,306.34

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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.