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Finding the Fourth Proportional to 218,465.20, 301,484.16 and 122,953.48

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Solution

The fourth proportional to 218,465.20, 301,484.16 and 122,953.48 is: 169,677.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,465.20 : 301,484.16 = 122,953.48 : x
  2. Step 2: Convert to fraction form
    218,465.20/301,484.16 = 122,953.48/x
  3. Step 3: Cross multiply
    218,465.20x = 301,484.16 × 122,953.48
  4. Step 4: Simplify right side
    218,465.20x = 37,068,526,636.88
  5. Step 5: Solve for x
    x = 37,068,526,636.88/218,465.20
  6. Step 6: Final answer
    x = 169,677.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.