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Finding the Fourth Proportional to 278,053.81, 383,714.75 and 150,729.71

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Solution

The fourth proportional to 278,053.81, 383,714.75 and 150,729.71 is: 208,007.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,053.81 : 383,714.75 = 150,729.71 : x
  2. Step 2: Convert to fraction form
    278,053.81/383,714.75 = 150,729.71/x
  3. Step 3: Cross multiply
    278,053.81x = 383,714.75 × 150,729.71
  4. Step 4: Simplify right side
    278,053.81x = 57,837,211,448.47
  5. Step 5: Solve for x
    x = 57,837,211,448.47/278,053.81
  6. Step 6: Final answer
    x = 208,007.26

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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.