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Finding the Fourth Proportional to 272,036.90, 408,055.35 and 270,287.30

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Solution

The fourth proportional to 272,036.90, 408,055.35 and 270,287.30 is: 405,430.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,036.90 : 408,055.35 = 270,287.30 : x
  2. Step 2: Convert to fraction form
    272,036.90/408,055.35 = 270,287.30/x
  3. Step 3: Cross multiply
    272,036.90x = 408,055.35 × 270,287.30
  4. Step 4: Simplify right side
    272,036.90x = 110,292,178,802.06
  5. Step 5: Solve for x
    x = 110,292,178,802.06/272,036.90
  6. Step 6: Final answer
    x = 405,430.95

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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.