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Finding the Fourth Proportional to 323,518.64, 485,277.95 and 98,879.72

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Solution

The fourth proportional to 323,518.64, 485,277.95 and 98,879.72 is: 148,319.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,518.64 : 485,277.95 = 98,879.72 : x
  2. Step 2: Convert to fraction form
    323,518.64/485,277.95 = 98,879.72/x
  3. Step 3: Cross multiply
    323,518.64x = 485,277.95 × 98,879.72
  4. Step 4: Simplify right side
    323,518.64x = 47,984,145,638.98
  5. Step 5: Solve for x
    x = 47,984,145,638.98/323,518.64
  6. Step 6: Final answer
    x = 148,319.57

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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.