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Finding the Fourth Proportional to 324,071.40, 486,107.10 and 245,339.40

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Solution

The fourth proportional to 324,071.40, 486,107.10 and 245,339.40 is: 368,009.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,071.40 : 486,107.10 = 245,339.40 : x
  2. Step 2: Convert to fraction form
    324,071.40/486,107.10 = 245,339.40/x
  3. Step 3: Cross multiply
    324,071.40x = 486,107.10 × 245,339.40
  4. Step 4: Simplify right side
    324,071.40x = 119,261,224,249.74
  5. Step 5: Solve for x
    x = 119,261,224,249.74/324,071.40
  6. Step 6: Final answer
    x = 368,009.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.