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Finding the Fourth Proportional to 255,153.81, 382,293.32 and 180,139.71

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Solution

The fourth proportional to 255,153.81, 382,293.32 and 180,139.71 is: 269,900.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,153.81 : 382,293.32 = 180,139.71 : x
  2. Step 2: Convert to fraction form
    255,153.81/382,293.32 = 180,139.71/x
  3. Step 3: Cross multiply
    255,153.81x = 382,293.32 × 180,139.71
  4. Step 4: Simplify right side
    255,153.81x = 68,866,206,899.04
  5. Step 5: Solve for x
    x = 68,866,206,899.04/255,153.81
  6. Step 6: Final answer
    x = 269,900.76

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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.