Home / 281,835.34-388,937.79-152,778.04

Finding the Fourth Proportional to 281,835.34, 388,937.79 and 152,778.04

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Solution

The fourth proportional to 281,835.34, 388,937.79 and 152,778.04 is: 210,836.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,835.34 : 388,937.79 = 152,778.04 : x
  2. Step 2: Convert to fraction form
    281,835.34/388,937.79 = 152,778.04/x
  3. Step 3: Cross multiply
    281,835.34x = 388,937.79 × 152,778.04
  4. Step 4: Simplify right side
    281,835.34x = 59,421,153,238.13
  5. Step 5: Solve for x
    x = 59,421,153,238.13/281,835.34
  6. Step 6: Final answer
    x = 210,836.42

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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.