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Finding the Fourth Proportional to 347,482, 521,223 and 98,170.48

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Solution

The fourth proportional to 347,482, 521,223 and 98,170.48 is: 147,255.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,482 : 521,223 = 98,170.48 : x
  2. Step 2: Convert to fraction form
    347,482/521,223 = 98,170.48/x
  3. Step 3: Cross multiply
    347,482x = 521,223 × 98,170.48
  4. Step 4: Simplify right side
    347,482x = 51,168,712,097.04
  5. Step 5: Solve for x
    x = 51,168,712,097.04/347,482
  6. Step 6: Final answer
    x = 147,255.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.