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Finding the Fourth Proportional to 145,358.39, 218,037.58 and 45,526.39

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Solution

The fourth proportional to 145,358.39, 218,037.58 and 45,526.39 is: 68,289.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,358.39 : 218,037.58 = 45,526.39 : x
  2. Step 2: Convert to fraction form
    145,358.39/218,037.58 = 45,526.39/x
  3. Step 3: Cross multiply
    145,358.39x = 218,037.58 × 45,526.39
  4. Step 4: Simplify right side
    145,358.39x = 9,926,464,194.68
  5. Step 5: Solve for x
    x = 9,926,464,194.68/145,358.39
  6. Step 6: Final answer
    x = 68,289.59

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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.