Home / 380,690.37-571,042.08-144,144.45

Finding the Fourth Proportional to 380,690.37, 571,042.08 and 144,144.45

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Solution

The fourth proportional to 380,690.37, 571,042.08 and 144,144.45 is: 216,219.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,690.37 : 571,042.08 = 144,144.45 : x
  2. Step 2: Convert to fraction form
    380,690.37/571,042.08 = 144,144.45/x
  3. Step 3: Cross multiply
    380,690.37x = 571,042.08 × 144,144.45
  4. Step 4: Simplify right side
    380,690.37x = 82,312,546,548.46
  5. Step 5: Solve for x
    x = 82,312,546,548.46/380,690.37
  6. Step 6: Final answer
    x = 216,219.15

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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.