Home / 478,268.14-717,381.45-178,751.31

Finding the Fourth Proportional to 478,268.14, 717,381.45 and 178,751.31

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Solution

The fourth proportional to 478,268.14, 717,381.45 and 178,751.31 is: 268,119.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,268.14 : 717,381.45 = 178,751.31 : x
  2. Step 2: Convert to fraction form
    478,268.14/717,381.45 = 178,751.31/x
  3. Step 3: Cross multiply
    478,268.14x = 717,381.45 × 178,751.31
  4. Step 4: Simplify right side
    478,268.14x = 128,232,873,957.20
  5. Step 5: Solve for x
    x = 128,232,873,957.20/478,268.14
  6. Step 6: Final answer
    x = 268,119.21

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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.