Home / 254,430.10-381,645.15-130,014.10

Finding the Fourth Proportional to 254,430.10, 381,645.15 and 130,014.10

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Solution

The fourth proportional to 254,430.10, 381,645.15 and 130,014.10 is: 195,021.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,430.10 : 381,645.15 = 130,014.10 : x
  2. Step 2: Convert to fraction form
    254,430.10/381,645.15 = 130,014.10/x
  3. Step 3: Cross multiply
    254,430.10x = 381,645.15 × 130,014.10
  4. Step 4: Simplify right side
    254,430.10x = 49,619,250,696.62
  5. Step 5: Solve for x
    x = 49,619,250,696.62/254,430.10
  6. Step 6: Final answer
    x = 195,021.15

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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.