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Finding the Fourth Proportional to 245,512.60, 368,312.10 and 87,832.60

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Solution

The fourth proportional to 245,512.60, 368,312.10 and 87,832.60 is: 131,764.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,512.60 : 368,312.10 = 87,832.60 : x
  2. Step 2: Convert to fraction form
    245,512.60/368,312.10 = 87,832.60/x
  3. Step 3: Cross multiply
    245,512.60x = 368,312.10 × 87,832.60
  4. Step 4: Simplify right side
    245,512.60x = 32,349,809,354.46
  5. Step 5: Solve for x
    x = 32,349,809,354.46/245,512.60
  6. Step 6: Final answer
    x = 131,764.35

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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.