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Finding the Fourth Proportional to 372,946.60, 559,638.60 and 136,313.20

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Solution

The fourth proportional to 372,946.60, 559,638.60 and 136,313.20 is: 204,549.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,946.60 : 559,638.60 = 136,313.20 : x
  2. Step 2: Convert to fraction form
    372,946.60/559,638.60 = 136,313.20/x
  3. Step 3: Cross multiply
    372,946.60x = 559,638.60 × 136,313.20
  4. Step 4: Simplify right side
    372,946.60x = 76,286,128,409.52
  5. Step 5: Solve for x
    x = 76,286,128,409.52/372,946.60
  6. Step 6: Final answer
    x = 204,549.74

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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.