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Finding the Fourth Proportional to 173,689.92, 260,265.89 and 120,485.36

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Solution

The fourth proportional to 173,689.92, 260,265.89 and 120,485.36 is: 180,541.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,689.92 : 260,265.89 = 120,485.36 : x
  2. Step 2: Convert to fraction form
    173,689.92/260,265.89 = 120,485.36/x
  3. Step 3: Cross multiply
    173,689.92x = 260,265.89 × 120,485.36
  4. Step 4: Simplify right side
    173,689.92x = 31,358,230,404.25
  5. Step 5: Solve for x
    x = 31,358,230,404.25/173,689.92
  6. Step 6: Final answer
    x = 180,541.45

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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.