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Finding the Fourth Proportional to 461,571.15, 692,287.47 and 145,987.05

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Solution

The fourth proportional to 461,571.15, 692,287.47 and 145,987.05 is: 218,958.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,571.15 : 692,287.47 = 145,987.05 : x
  2. Step 2: Convert to fraction form
    461,571.15/692,287.47 = 145,987.05/x
  3. Step 3: Cross multiply
    461,571.15x = 692,287.47 × 145,987.05
  4. Step 4: Simplify right side
    461,571.15x = 101,065,005,497.26
  5. Step 5: Solve for x
    x = 101,065,005,497.26/461,571.15
  6. Step 6: Final answer
    x = 218,958.67

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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.