Home / 312,271.28-430,936.45-174,450.14

Finding the Fourth Proportional to 312,271.28, 430,936.45 and 174,450.14

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Solution

The fourth proportional to 312,271.28, 430,936.45 and 174,450.14 is: 240,742.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,271.28 : 430,936.45 = 174,450.14 : x
  2. Step 2: Convert to fraction form
    312,271.28/430,936.45 = 174,450.14/x
  3. Step 3: Cross multiply
    312,271.28x = 430,936.45 × 174,450.14
  4. Step 4: Simplify right side
    312,271.28x = 75,176,921,442.80
  5. Step 5: Solve for x
    x = 75,176,921,442.80/312,271.28
  6. Step 6: Final answer
    x = 240,742.35

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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.