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Finding the Fourth Proportional to 507,405.25, 700,242.33 and 281,050.75

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Solution

The fourth proportional to 507,405.25, 700,242.33 and 281,050.75 is: 387,862.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,405.25 : 700,242.33 = 281,050.75 : x
  2. Step 2: Convert to fraction form
    507,405.25/700,242.33 = 281,050.75/x
  3. Step 3: Cross multiply
    507,405.25x = 700,242.33 × 281,050.75
  4. Step 4: Simplify right side
    507,405.25x = 196,803,632,028.25
  5. Step 5: Solve for x
    x = 196,803,632,028.25/507,405.25
  6. Step 6: Final answer
    x = 387,862.82

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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.