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Finding the Fourth Proportional to 312,015.20, 467,245.20 and 249,807.20

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Solution

The fourth proportional to 312,015.20, 467,245.20 and 249,807.20 is: 374,088.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,015.20 : 467,245.20 = 249,807.20 : x
  2. Step 2: Convert to fraction form
    312,015.20/467,245.20 = 249,807.20/x
  3. Step 3: Cross multiply
    312,015.20x = 467,245.20 × 249,807.20
  4. Step 4: Simplify right side
    312,015.20x = 116,721,215,125.44
  5. Step 5: Solve for x
    x = 116,721,215,125.44/312,015.20
  6. Step 6: Final answer
    x = 374,088.23

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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.