Home / 328,533.34-492,853.26-128,745.40

Finding the Fourth Proportional to 328,533.34, 492,853.26 and 128,745.40

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Solution

The fourth proportional to 328,533.34, 492,853.26 and 128,745.40 is: 193,138.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,533.34 : 492,853.26 = 128,745.40 : x
  2. Step 2: Convert to fraction form
    328,533.34/492,853.26 = 128,745.40/x
  3. Step 3: Cross multiply
    328,533.34x = 492,853.26 × 128,745.40
  4. Step 4: Simplify right side
    328,533.34x = 63,452,590,100.00
  5. Step 5: Solve for x
    x = 63,452,590,100.00/328,533.34
  6. Step 6: Final answer
    x = 193,138.97

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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.