Home / 315,165.36-434,915.33-186,145.59

Finding the Fourth Proportional to 315,165.36, 434,915.33 and 186,145.59

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Solution

The fourth proportional to 315,165.36, 434,915.33 and 186,145.59 is: 256,873.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,165.36 : 434,915.33 = 186,145.59 : x
  2. Step 2: Convert to fraction form
    315,165.36/434,915.33 = 186,145.59/x
  3. Step 3: Cross multiply
    315,165.36x = 434,915.33 × 186,145.59
  4. Step 4: Simplify right side
    315,165.36x = 80,957,569,772.17
  5. Step 5: Solve for x
    x = 80,957,569,772.17/315,165.36
  6. Step 6: Final answer
    x = 256,873.31

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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.