Home / 256,403.40-384,488.15-106,554.41

Finding the Fourth Proportional to 256,403.40, 384,488.15 and 106,554.41

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Solution

The fourth proportional to 256,403.40, 384,488.15 and 106,554.41 is: 159,783.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,403.40 : 384,488.15 = 106,554.41 : x
  2. Step 2: Convert to fraction form
    256,403.40/384,488.15 = 106,554.41/x
  3. Step 3: Cross multiply
    256,403.40x = 384,488.15 × 106,554.41
  4. Step 4: Simplify right side
    256,403.40x = 40,968,907,975.24
  5. Step 5: Solve for x
    x = 40,968,907,975.24/256,403.40
  6. Step 6: Final answer
    x = 159,783.01

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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.