Home / 345,630.30-476,860.53-272,803.20

Finding the Fourth Proportional to 345,630.30, 476,860.53 and 272,803.20

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Solution

The fourth proportional to 345,630.30, 476,860.53 and 272,803.20 is: 376,382.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,630.30 : 476,860.53 = 272,803.20 : x
  2. Step 2: Convert to fraction form
    345,630.30/476,860.53 = 272,803.20/x
  3. Step 3: Cross multiply
    345,630.30x = 476,860.53 × 272,803.20
  4. Step 4: Simplify right side
    345,630.30x = 130,089,078,537.70
  5. Step 5: Solve for x
    x = 130,089,078,537.70/345,630.30
  6. Step 6: Final answer
    x = 376,382.16

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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.