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Finding the Fourth Proportional to 163,610.40, 245,415.60 and 145,239.60

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Solution

The fourth proportional to 163,610.40, 245,415.60 and 145,239.60 is: 217,859.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,610.40 : 245,415.60 = 145,239.60 : x
  2. Step 2: Convert to fraction form
    163,610.40/245,415.60 = 145,239.60/x
  3. Step 3: Cross multiply
    163,610.40x = 245,415.60 × 145,239.60
  4. Step 4: Simplify right side
    163,610.40x = 35,644,063,577.76
  5. Step 5: Solve for x
    x = 35,644,063,577.76/163,610.40
  6. Step 6: Final answer
    x = 217,859.40

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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.