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Finding the Fourth Proportional to 437,641.51, 603,993.34 and 253,920.55

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Solution

The fourth proportional to 437,641.51, 603,993.34 and 253,920.55 is: 350,438.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,641.51 : 603,993.34 = 253,920.55 : x
  2. Step 2: Convert to fraction form
    437,641.51/603,993.34 = 253,920.55/x
  3. Step 3: Cross multiply
    437,641.51x = 603,993.34 × 253,920.55
  4. Step 4: Simplify right side
    437,641.51x = 153,366,321,089.14
  5. Step 5: Solve for x
    x = 153,366,321,089.14/437,641.51
  6. Step 6: Final answer
    x = 350,438.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.