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Finding the Fourth Proportional to 417,640.40, 626,460.60 and 151,409.60

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Solution

The fourth proportional to 417,640.40, 626,460.60 and 151,409.60 is: 227,114.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,640.40 : 626,460.60 = 151,409.60 : x
  2. Step 2: Convert to fraction form
    417,640.40/626,460.60 = 151,409.60/x
  3. Step 3: Cross multiply
    417,640.40x = 626,460.60 × 151,409.60
  4. Step 4: Simplify right side
    417,640.40x = 94,852,148,861.76
  5. Step 5: Solve for x
    x = 94,852,148,861.76/417,640.40
  6. Step 6: Final answer
    x = 227,114.40

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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.