Home / 272,220.04-407,974.72-138,987.64

Finding the Fourth Proportional to 272,220.04, 407,974.72 and 138,987.64

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Solution

The fourth proportional to 272,220.04, 407,974.72 and 138,987.64 is: 208,300.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,220.04 : 407,974.72 = 138,987.64 : x
  2. Step 2: Convert to fraction form
    272,220.04/407,974.72 = 138,987.64/x
  3. Step 3: Cross multiply
    272,220.04x = 407,974.72 × 138,987.64
  4. Step 4: Simplify right side
    272,220.04x = 56,703,443,512.46
  5. Step 5: Solve for x
    x = 56,703,443,512.46/272,220.04
  6. Step 6: Final answer
    x = 208,300.03

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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.