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Finding the Fourth Proportional to 277,081.36, 415,473 and 143,630.80

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Solution

The fourth proportional to 277,081.36, 415,473 and 143,630.80 is: 215,368.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,081.36 : 415,473 = 143,630.80 : x
  2. Step 2: Convert to fraction form
    277,081.36/415,473 = 143,630.80/x
  3. Step 3: Cross multiply
    277,081.36x = 415,473 × 143,630.80
  4. Step 4: Simplify right side
    277,081.36x = 59,674,719,368.40
  5. Step 5: Solve for x
    x = 59,674,719,368.40/277,081.36
  6. Step 6: Final answer
    x = 215,368.94

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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.