Home / 170,215.80-255,323.70-153,886.20

Finding the Fourth Proportional to 170,215.80, 255,323.70 and 153,886.20

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Solution

The fourth proportional to 170,215.80, 255,323.70 and 153,886.20 is: 230,829.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,215.80 : 255,323.70 = 153,886.20 : x
  2. Step 2: Convert to fraction form
    170,215.80/255,323.70 = 153,886.20/x
  3. Step 3: Cross multiply
    170,215.80x = 255,323.70 × 153,886.20
  4. Step 4: Simplify right side
    170,215.80x = 39,290,793,962.94
  5. Step 5: Solve for x
    x = 39,290,793,962.94/170,215.80
  6. Step 6: Final answer
    x = 230,829.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.