Home / 290,835.23-436,661.56-148,782.40

Finding the Fourth Proportional to 290,835.23, 436,661.56 and 148,782.40

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Solution

The fourth proportional to 290,835.23, 436,661.56 and 148,782.40 is: 223,382.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,835.23 : 436,661.56 = 148,782.40 : x
  2. Step 2: Convert to fraction form
    290,835.23/436,661.56 = 148,782.40/x
  3. Step 3: Cross multiply
    290,835.23x = 436,661.56 × 148,782.40
  4. Step 4: Simplify right side
    290,835.23x = 64,967,552,701.24
  5. Step 5: Solve for x
    x = 64,967,552,701.24/290,835.23
  6. Step 6: Final answer
    x = 223,382.68

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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.