Home / 328,440.45-492,937.48-128,900.97

Finding the Fourth Proportional to 328,440.45, 492,937.48 and 128,900.97

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Solution

The fourth proportional to 328,440.45, 492,937.48 and 128,900.97 is: 193,460.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,440.45 : 492,937.48 = 128,900.97 : x
  2. Step 2: Convert to fraction form
    328,440.45/492,937.48 = 128,900.97/x
  3. Step 3: Cross multiply
    328,440.45x = 492,937.48 × 128,900.97
  4. Step 4: Simplify right side
    328,440.45x = 63,540,119,482.48
  5. Step 5: Solve for x
    x = 63,540,119,482.48/328,440.45
  6. Step 6: Final answer
    x = 193,460.09

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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.