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Finding the Fourth Proportional to 242,142.81, 334,152.50 and 134,712.51

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Solution

The fourth proportional to 242,142.81, 334,152.50 and 134,712.51 is: 185,900.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,142.81 : 334,152.50 = 134,712.51 : x
  2. Step 2: Convert to fraction form
    242,142.81/334,152.50 = 134,712.51/x
  3. Step 3: Cross multiply
    242,142.81x = 334,152.50 × 134,712.51
  4. Step 4: Simplify right side
    242,142.81x = 45,014,521,997.78
  5. Step 5: Solve for x
    x = 45,014,521,997.78/242,142.81
  6. Step 6: Final answer
    x = 185,900.72

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