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Finding the Fourth Proportional to 242,685.80, 364,028.70 and 102,602.60

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Solution

The fourth proportional to 242,685.80, 364,028.70 and 102,602.60 is: 153,903.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,685.80 : 364,028.70 = 102,602.60 : x
  2. Step 2: Convert to fraction form
    242,685.80/364,028.70 = 102,602.60/x
  3. Step 3: Cross multiply
    242,685.80x = 364,028.70 × 102,602.60
  4. Step 4: Simplify right side
    242,685.80x = 37,350,291,094.62
  5. Step 5: Solve for x
    x = 37,350,291,094.62/242,685.80
  6. Step 6: Final answer
    x = 153,903.90

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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.