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Finding the Fourth Proportional to 290,740.20, 436,110.30 and 240,001.80

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Solution

The fourth proportional to 290,740.20, 436,110.30 and 240,001.80 is: 360,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,740.20 : 436,110.30 = 240,001.80 : x
  2. Step 2: Convert to fraction form
    290,740.20/436,110.30 = 240,001.80/x
  3. Step 3: Cross multiply
    290,740.20x = 436,110.30 × 240,001.80
  4. Step 4: Simplify right side
    290,740.20x = 104,667,256,998.54
  5. Step 5: Solve for x
    x = 104,667,256,998.54/290,740.20
  6. Step 6: Final answer
    x = 360,002.70

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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.