Home / 338,790.10-468,079.50-288,336.01

Finding the Fourth Proportional to 338,790.10, 468,079.50 and 288,336.01

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Solution

The fourth proportional to 338,790.10, 468,079.50 and 288,336.01 is: 398,371.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,790.10 : 468,079.50 = 288,336.01 : x
  2. Step 2: Convert to fraction form
    338,790.10/468,079.50 = 288,336.01/x
  3. Step 3: Cross multiply
    338,790.10x = 468,079.50 × 288,336.01
  4. Step 4: Simplify right side
    338,790.10x = 134,964,176,687.03
  5. Step 5: Solve for x
    x = 134,964,176,687.03/338,790.10
  6. Step 6: Final answer
    x = 398,371.07

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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.