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Finding the Fourth Proportional to 160,360.12, 240,469.08 and 85,466.32

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Solution

The fourth proportional to 160,360.12, 240,469.08 and 85,466.32 is: 128,161.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,360.12 : 240,469.08 = 85,466.32 : x
  2. Step 2: Convert to fraction form
    160,360.12/240,469.08 = 85,466.32/x
  3. Step 3: Cross multiply
    160,360.12x = 240,469.08 × 85,466.32
  4. Step 4: Simplify right side
    160,360.12x = 20,552,007,341.39
  5. Step 5: Solve for x
    x = 20,552,007,341.39/160,360.12
  6. Step 6: Final answer
    x = 128,161.59

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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.