Home / 285,028.17-426,690.38-172,367.60

Finding the Fourth Proportional to 285,028.17, 426,690.38 and 172,367.60

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Solution

The fourth proportional to 285,028.17, 426,690.38 and 172,367.60 is: 258,036.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,028.17 : 426,690.38 = 172,367.60 : x
  2. Step 2: Convert to fraction form
    285,028.17/426,690.38 = 172,367.60/x
  3. Step 3: Cross multiply
    285,028.17x = 426,690.38 × 172,367.60
  4. Step 4: Simplify right side
    285,028.17x = 73,547,595,041.16
  5. Step 5: Solve for x
    x = 73,547,595,041.16/285,028.17
  6. Step 6: Final answer
    x = 258,036.24

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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.