Home / 382,928.80-574,652.40-172,458.40

Finding the Fourth Proportional to 382,928.80, 574,652.40 and 172,458.40

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Solution

The fourth proportional to 382,928.80, 574,652.40 and 172,458.40 is: 258,804.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,928.80 : 574,652.40 = 172,458.40 : x
  2. Step 2: Convert to fraction form
    382,928.80/574,652.40 = 172,458.40/x
  3. Step 3: Cross multiply
    382,928.80x = 574,652.40 × 172,458.40
  4. Step 4: Simplify right side
    382,928.80x = 99,103,633,460.16
  5. Step 5: Solve for x
    x = 99,103,633,460.16/382,928.80
  6. Step 6: Final answer
    x = 258,804.34

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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.