Home / 382,912.16-574,368.40-172,304.08

Finding the Fourth Proportional to 382,912.16, 574,368.40 and 172,304.08

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Solution

The fourth proportional to 382,912.16, 574,368.40 and 172,304.08 is: 258,456.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,912.16 : 574,368.40 = 172,304.08 : x
  2. Step 2: Convert to fraction form
    382,912.16/574,368.40 = 172,304.08/x
  3. Step 3: Cross multiply
    382,912.16x = 574,368.40 × 172,304.08
  4. Step 4: Simplify right side
    382,912.16x = 98,966,018,743.07
  5. Step 5: Solve for x
    x = 98,966,018,743.07/382,912.16
  6. Step 6: Final answer
    x = 258,456.19

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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.