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Finding the Fourth Proportional to 347,629, 479,728.02 and 188,653

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Solution

The fourth proportional to 347,629, 479,728.02 and 188,653 is: 260,341.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,629 : 479,728.02 = 188,653 : x
  2. Step 2: Convert to fraction form
    347,629/479,728.02 = 188,653/x
  3. Step 3: Cross multiply
    347,629x = 479,728.02 × 188,653
  4. Step 4: Simplify right side
    347,629x = 90,502,130,157.06
  5. Step 5: Solve for x
    x = 90,502,130,157.06/347,629
  6. Step 6: Final answer
    x = 260,341.14

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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.