Home / 285,046.54-393,364.26-155,985.04

Finding the Fourth Proportional to 285,046.54, 393,364.26 and 155,985.04

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Solution

The fourth proportional to 285,046.54, 393,364.26 and 155,985.04 is: 215,259.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,046.54 : 393,364.26 = 155,985.04 : x
  2. Step 2: Convert to fraction form
    285,046.54/393,364.26 = 155,985.04/x
  3. Step 3: Cross multiply
    285,046.54x = 393,364.26 × 155,985.04
  4. Step 4: Simplify right side
    285,046.54x = 61,358,939,830.67
  5. Step 5: Solve for x
    x = 61,358,939,830.67/285,046.54
  6. Step 6: Final answer
    x = 215,259.37

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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.