Home / 445,501.20-668,316.60-145,909.20

Finding the Fourth Proportional to 445,501.20, 668,316.60 and 145,909.20

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Solution

The fourth proportional to 445,501.20, 668,316.60 and 145,909.20 is: 218,885.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,501.20 : 668,316.60 = 145,909.20 : x
  2. Step 2: Convert to fraction form
    445,501.20/668,316.60 = 145,909.20/x
  3. Step 3: Cross multiply
    445,501.20x = 668,316.60 × 145,909.20
  4. Step 4: Simplify right side
    445,501.20x = 97,513,540,452.72
  5. Step 5: Solve for x
    x = 97,513,540,452.72/445,501.20
  6. Step 6: Final answer
    x = 218,885.02

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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.