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Finding the Fourth Proportional to 277,142.04, 415,713.04 and 66,779.98

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Solution

The fourth proportional to 277,142.04, 415,713.04 and 66,779.98 is: 100,169.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,142.04 : 415,713.04 = 66,779.98 : x
  2. Step 2: Convert to fraction form
    277,142.04/415,713.04 = 66,779.98/x
  3. Step 3: Cross multiply
    277,142.04x = 415,713.04 × 66,779.98
  4. Step 4: Simplify right side
    277,142.04x = 27,761,307,290.71
  5. Step 5: Solve for x
    x = 27,761,307,290.71/277,142.04
  6. Step 6: Final answer
    x = 100,169.96

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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.