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Finding the Fourth Proportional to 254,597.96, 351,298.86 and 147,128.60

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Solution

The fourth proportional to 254,597.96, 351,298.86 and 147,128.60 is: 203,010.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,597.96 : 351,298.86 = 147,128.60 : x
  2. Step 2: Convert to fraction form
    254,597.96/351,298.86 = 147,128.60/x
  3. Step 3: Cross multiply
    254,597.96x = 351,298.86 × 147,128.60
  4. Step 4: Simplify right side
    254,597.96x = 51,686,109,453.40
  5. Step 5: Solve for x
    x = 51,686,109,453.40/254,597.96
  6. Step 6: Final answer
    x = 203,010.70

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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.