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Finding the Fourth Proportional to 173,515.60, 260,030.40 and 138,037.60

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Solution

The fourth proportional to 173,515.60, 260,030.40 and 138,037.60 is: 206,863.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,515.60 : 260,030.40 = 138,037.60 : x
  2. Step 2: Convert to fraction form
    173,515.60/260,030.40 = 138,037.60/x
  3. Step 3: Cross multiply
    173,515.60x = 260,030.40 × 138,037.60
  4. Step 4: Simplify right side
    173,515.60x = 35,893,972,343.04
  5. Step 5: Solve for x
    x = 35,893,972,343.04/173,515.60
  6. Step 6: Final answer
    x = 206,863.09

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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.