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Finding the Fourth Proportional to 440,042.70, 660,085.65 and 230,090.70

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Solution

The fourth proportional to 440,042.70, 660,085.65 and 230,090.70 is: 345,147.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,042.70 : 660,085.65 = 230,090.70 : x
  2. Step 2: Convert to fraction form
    440,042.70/660,085.65 = 230,090.70/x
  3. Step 3: Cross multiply
    440,042.70x = 660,085.65 × 230,090.70
  4. Step 4: Simplify right side
    440,042.70x = 151,879,569,268.46
  5. Step 5: Solve for x
    x = 151,879,569,268.46/440,042.70
  6. Step 6: Final answer
    x = 345,147.34

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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.