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Finding the Fourth Proportional to 347,358, 479,354.04 and 188,382

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Solution

The fourth proportional to 347,358, 479,354.04 and 188,382 is: 259,967.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,358 : 479,354.04 = 188,382 : x
  2. Step 2: Convert to fraction form
    347,358/479,354.04 = 188,382/x
  3. Step 3: Cross multiply
    347,358x = 479,354.04 × 188,382
  4. Step 4: Simplify right side
    347,358x = 90,301,672,763.28
  5. Step 5: Solve for x
    x = 90,301,672,763.28/347,358
  6. Step 6: Final answer
    x = 259,967.16

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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.