Home / 395,210.75-545,401.43-240,109.25

Finding the Fourth Proportional to 395,210.75, 545,401.43 and 240,109.25

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Solution

The fourth proportional to 395,210.75, 545,401.43 and 240,109.25 is: 331,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,210.75 : 545,401.43 = 240,109.25 : x
  2. Step 2: Convert to fraction form
    395,210.75/545,401.43 = 240,109.25/x
  3. Step 3: Cross multiply
    395,210.75x = 545,401.43 × 240,109.25
  4. Step 4: Simplify right side
    395,210.75x = 130,955,924,378.67
  5. Step 5: Solve for x
    x = 130,955,924,378.67/395,210.75
  6. Step 6: Final answer
    x = 331,357.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.