Home / 250,128.74-345,212.08-153,390.44

Finding the Fourth Proportional to 250,128.74, 345,212.08 and 153,390.44

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Solution

The fourth proportional to 250,128.74, 345,212.08 and 153,390.44 is: 211,699.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,128.74 : 345,212.08 = 153,390.44 : x
  2. Step 2: Convert to fraction form
    250,128.74/345,212.08 = 153,390.44/x
  3. Step 3: Cross multiply
    250,128.74x = 345,212.08 × 153,390.44
  4. Step 4: Simplify right side
    250,128.74x = 52,952,232,844.52
  5. Step 5: Solve for x
    x = 52,952,232,844.52/250,128.74
  6. Step 6: Final answer
    x = 211,699.91

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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.