Home / 287,720.54-397,056.04-166,933.74

Finding the Fourth Proportional to 287,720.54, 397,056.04 and 166,933.74

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Solution

The fourth proportional to 287,720.54, 397,056.04 and 166,933.74 is: 230,369.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,720.54 : 397,056.04 = 166,933.74 : x
  2. Step 2: Convert to fraction form
    287,720.54/397,056.04 = 166,933.74/x
  3. Step 3: Cross multiply
    287,720.54x = 397,056.04 × 166,933.74
  4. Step 4: Simplify right side
    287,720.54x = 66,282,049,746.79
  5. Step 5: Solve for x
    x = 66,282,049,746.79/287,720.54
  6. Step 6: Final answer
    x = 230,369.54

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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.