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Finding the Fourth Proportional to 145,048.68, 217,568.46 and 39,866.74

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Solution

The fourth proportional to 145,048.68, 217,568.46 and 39,866.74 is: 59,798.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,048.68 : 217,568.46 = 39,866.74 : x
  2. Step 2: Convert to fraction form
    145,048.68/217,568.46 = 39,866.74/x
  3. Step 3: Cross multiply
    145,048.68x = 217,568.46 × 39,866.74
  4. Step 4: Simplify right side
    145,048.68x = 8,673,745,227.02
  5. Step 5: Solve for x
    x = 8,673,745,227.02/145,048.68
  6. Step 6: Final answer
    x = 59,798.86

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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.