Home / 445,571.56-668,421.02-145,988.20

Finding the Fourth Proportional to 445,571.56, 668,421.02 and 145,988.20

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Solution

The fourth proportional to 445,571.56, 668,421.02 and 145,988.20 is: 219,003.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,571.56 : 668,421.02 = 145,988.20 : x
  2. Step 2: Convert to fraction form
    445,571.56/668,421.02 = 145,988.20/x
  3. Step 3: Cross multiply
    445,571.56x = 668,421.02 × 145,988.20
  4. Step 4: Simplify right side
    445,571.56x = 97,581,581,551.96
  5. Step 5: Solve for x
    x = 97,581,581,551.96/445,571.56
  6. Step 6: Final answer
    x = 219,003.16

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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.