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Finding the Fourth Proportional to 145,513.76, 218,270.74 and 40,333.64

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Solution

The fourth proportional to 145,513.76, 218,270.74 and 40,333.64 is: 60,500.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,513.76 : 218,270.74 = 40,333.64 : x
  2. Step 2: Convert to fraction form
    145,513.76/218,270.74 = 40,333.64/x
  3. Step 3: Cross multiply
    145,513.76x = 218,270.74 × 40,333.64
  4. Step 4: Simplify right side
    145,513.76x = 8,803,653,449.69
  5. Step 5: Solve for x
    x = 8,803,653,449.69/145,513.76
  6. Step 6: Final answer
    x = 60,500.49

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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.