Home / 277,280.40-415,920.66-77,630.19

Finding the Fourth Proportional to 277,280.40, 415,920.66 and 77,630.19

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Solution

The fourth proportional to 277,280.40, 415,920.66 and 77,630.19 is: 116,445.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,280.40 : 415,920.66 = 77,630.19 : x
  2. Step 2: Convert to fraction form
    277,280.40/415,920.66 = 77,630.19/x
  3. Step 3: Cross multiply
    277,280.40x = 415,920.66 × 77,630.19
  4. Step 4: Simplify right side
    277,280.40x = 32,287,999,860.73
  5. Step 5: Solve for x
    x = 32,287,999,860.73/277,280.40
  6. Step 6: Final answer
    x = 116,445.30

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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.