Home / 314,439.25-434,195.87-304,271.36

Finding the Fourth Proportional to 314,439.25, 434,195.87 and 304,271.36

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Solution

The fourth proportional to 314,439.25, 434,195.87 and 304,271.36 is: 420,155.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,439.25 : 434,195.87 = 304,271.36 : x
  2. Step 2: Convert to fraction form
    314,439.25/434,195.87 = 304,271.36/x
  3. Step 3: Cross multiply
    314,439.25x = 434,195.87 × 304,271.36
  4. Step 4: Simplify right side
    314,439.25x = 132,113,367,871.28
  5. Step 5: Solve for x
    x = 132,113,367,871.28/314,439.25
  6. Step 6: Final answer
    x = 420,155.46

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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.