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Finding the Fourth Proportional to 173,159.80, 259,739.70 and 145,603.60

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Solution

The fourth proportional to 173,159.80, 259,739.70 and 145,603.60 is: 218,405.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,159.80 : 259,739.70 = 145,603.60 : x
  2. Step 2: Convert to fraction form
    173,159.80/259,739.70 = 145,603.60/x
  3. Step 3: Cross multiply
    173,159.80x = 259,739.70 × 145,603.60
  4. Step 4: Simplify right side
    173,159.80x = 37,819,035,382.92
  5. Step 5: Solve for x
    x = 37,819,035,382.92/173,159.80
  6. Step 6: Final answer
    x = 218,405.40

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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.