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Finding the Fourth Proportional to 173,358.40, 260,037.60 and 99,630.40

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Solution

The fourth proportional to 173,358.40, 260,037.60 and 99,630.40 is: 149,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,358.40 : 260,037.60 = 99,630.40 : x
  2. Step 2: Convert to fraction form
    173,358.40/260,037.60 = 99,630.40/x
  3. Step 3: Cross multiply
    173,358.40x = 260,037.60 × 99,630.40
  4. Step 4: Simplify right side
    173,358.40x = 25,907,650,103.04
  5. Step 5: Solve for x
    x = 25,907,650,103.04/173,358.40
  6. Step 6: Final answer
    x = 149,445.60

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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.