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Finding the Fourth Proportional to 207,348.40, 310,792.20 and 88,999.60

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Solution

The fourth proportional to 207,348.40, 310,792.20 and 88,999.60 is: 133,400.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,348.40 : 310,792.20 = 88,999.60 : x
  2. Step 2: Convert to fraction form
    207,348.40/310,792.20 = 88,999.60/x
  3. Step 3: Cross multiply
    207,348.40x = 310,792.20 × 88,999.60
  4. Step 4: Simplify right side
    207,348.40x = 27,660,381,483.12
  5. Step 5: Solve for x
    x = 27,660,381,483.12/207,348.40
  6. Step 6: Final answer
    x = 133,400.51

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1.5x scale

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.