Home / 315,914.68-435,961.63-179,948.58

Finding the Fourth Proportional to 315,914.68, 435,961.63 and 179,948.58

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Solution

The fourth proportional to 315,914.68, 435,961.63 and 179,948.58 is: 248,328.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,914.68 : 435,961.63 = 179,948.58 : x
  2. Step 2: Convert to fraction form
    315,914.68/435,961.63 = 179,948.58/x
  3. Step 3: Cross multiply
    315,914.68x = 435,961.63 × 179,948.58
  4. Step 4: Simplify right side
    315,914.68x = 78,450,676,252.99
  5. Step 5: Solve for x
    x = 78,450,676,252.99/315,914.68
  6. Step 6: Final answer
    x = 248,328.68

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1.5x scale

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.