Home / 314,438.10-434,194.29-304,270.21

Finding the Fourth Proportional to 314,438.10, 434,194.29 and 304,270.21

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Solution

The fourth proportional to 314,438.10, 434,194.29 and 304,270.21 is: 420,153.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,438.10 : 434,194.29 = 304,270.21 : x
  2. Step 2: Convert to fraction form
    314,438.10/434,194.29 = 304,270.21/x
  3. Step 3: Cross multiply
    314,438.10x = 434,194.29 × 304,270.21
  4. Step 4: Simplify right side
    314,438.10x = 132,112,385,226.45
  5. Step 5: Solve for x
    x = 132,112,385,226.45/314,438.10
  6. Step 6: Final answer
    x = 420,153.87

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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.