Home / 469,916.19-648,485.59-255,056.25

Finding the Fourth Proportional to 469,916.19, 648,485.59 and 255,056.25

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Solution

The fourth proportional to 469,916.19, 648,485.59 and 255,056.25 is: 351,978.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,916.19 : 648,485.59 = 255,056.25 : x
  2. Step 2: Convert to fraction form
    469,916.19/648,485.59 = 255,056.25/x
  3. Step 3: Cross multiply
    469,916.19x = 648,485.59 × 255,056.25
  4. Step 4: Simplify right side
    469,916.19x = 165,400,302,764.44
  5. Step 5: Solve for x
    x = 165,400,302,764.44/469,916.19
  6. Step 6: Final answer
    x = 351,978.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.