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Finding the Fourth Proportional to 180,946.70, 249,707.58 and 100,379.33

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Solution

The fourth proportional to 180,946.70, 249,707.58 and 100,379.33 is: 138,524.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,946.70 : 249,707.58 = 100,379.33 : x
  2. Step 2: Convert to fraction form
    180,946.70/249,707.58 = 100,379.33/x
  3. Step 3: Cross multiply
    180,946.70x = 249,707.58 × 100,379.33
  4. Step 4: Simplify right side
    180,946.70x = 25,065,480,200.59
  5. Step 5: Solve for x
    x = 25,065,480,200.59/180,946.70
  6. Step 6: Final answer
    x = 138,524.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.