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Finding the Fourth Proportional to 349,283, 482,010.54 and 190,307

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Solution

The fourth proportional to 349,283, 482,010.54 and 190,307 is: 262,623.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,283 : 482,010.54 = 190,307 : x
  2. Step 2: Convert to fraction form
    349,283/482,010.54 = 190,307/x
  3. Step 3: Cross multiply
    349,283x = 482,010.54 × 190,307
  4. Step 4: Simplify right side
    349,283x = 91,729,979,835.78
  5. Step 5: Solve for x
    x = 91,729,979,835.78/349,283
  6. Step 6: Final answer
    x = 262,623.66

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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.