Home / 328,254.30-492,184.35-128,336.31

Finding the Fourth Proportional to 328,254.30, 492,184.35 and 128,336.31

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Solution

The fourth proportional to 328,254.30, 492,184.35 and 128,336.31 is: 192,427.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,254.30 : 492,184.35 = 128,336.31 : x
  2. Step 2: Convert to fraction form
    328,254.30/492,184.35 = 128,336.31/x
  3. Step 3: Cross multiply
    328,254.30x = 492,184.35 × 128,336.31
  4. Step 4: Simplify right side
    328,254.30x = 63,165,123,318.75
  5. Step 5: Solve for x
    x = 63,165,123,318.75/328,254.30
  6. Step 6: Final answer
    x = 192,427.41

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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.