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Finding the Fourth Proportional to 245,077.10, 367,615.65 and 78,865.10

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Solution

The fourth proportional to 245,077.10, 367,615.65 and 78,865.10 is: 118,297.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,077.10 : 367,615.65 = 78,865.10 : x
  2. Step 2: Convert to fraction form
    245,077.10/367,615.65 = 78,865.10/x
  3. Step 3: Cross multiply
    245,077.10x = 367,615.65 × 78,865.10
  4. Step 4: Simplify right side
    245,077.10x = 28,992,044,998.82
  5. Step 5: Solve for x
    x = 28,992,044,998.82/245,077.10
  6. Step 6: Final answer
    x = 118,297.65

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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.