Home / 269,085-371,337.39-155,973.36

Finding the Fourth Proportional to 269,085, 371,337.39 and 155,973.36

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Solution

The fourth proportional to 269,085, 371,337.39 and 155,973.36 is: 215,243.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,085 : 371,337.39 = 155,973.36 : x
  2. Step 2: Convert to fraction form
    269,085/371,337.39 = 155,973.36/x
  3. Step 3: Cross multiply
    269,085x = 371,337.39 × 155,973.36
  4. Step 4: Simplify right side
    269,085x = 57,918,740,411.93
  5. Step 5: Solve for x
    x = 57,918,740,411.93/269,085
  6. Step 6: Final answer
    x = 215,243.29

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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.