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Finding the Fourth Proportional to 324,009.10, 486,013.65 and 310,012.30

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Solution

The fourth proportional to 324,009.10, 486,013.65 and 310,012.30 is: 465,018.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,009.10 : 486,013.65 = 310,012.30 : x
  2. Step 2: Convert to fraction form
    324,009.10/486,013.65 = 310,012.30/x
  3. Step 3: Cross multiply
    324,009.10x = 486,013.65 × 310,012.30
  4. Step 4: Simplify right side
    324,009.10x = 150,670,209,467.90
  5. Step 5: Solve for x
    x = 150,670,209,467.90/324,009.10
  6. Step 6: Final answer
    x = 465,018.45

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Similar ratio
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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.