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Finding the Fourth Proportional to 218,761.60, 301,897.28 and 123,263.04

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Solution

The fourth proportional to 218,761.60, 301,897.28 and 123,263.04 is: 170,106.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,761.60 : 301,897.28 = 123,263.04 : x
  2. Step 2: Convert to fraction form
    218,761.60/301,897.28 = 123,263.04/x
  3. Step 3: Cross multiply
    218,761.60x = 301,897.28 × 123,263.04
  4. Step 4: Simplify right side
    218,761.60x = 37,212,776,500.53
  5. Step 5: Solve for x
    x = 37,212,776,500.53/218,761.60
  6. Step 6: Final answer
    x = 170,106.53

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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.