Home / 285,118.92-393,421.77-173,173.36

Finding the Fourth Proportional to 285,118.92, 393,421.77 and 173,173.36

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Solution

The fourth proportional to 285,118.92, 393,421.77 and 173,173.36 is: 238,953.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,118.92 : 393,421.77 = 173,173.36 : x
  2. Step 2: Convert to fraction form
    285,118.92/393,421.77 = 173,173.36/x
  3. Step 3: Cross multiply
    285,118.92x = 393,421.77 × 173,173.36
  4. Step 4: Simplify right side
    285,118.92x = 68,130,169,075.11
  5. Step 5: Solve for x
    x = 68,130,169,075.11/285,118.92
  6. Step 6: Final answer
    x = 238,953.52

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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.