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Finding the Fourth Proportional to 242,688.30, 364,032.45 and 137,712.30

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Solution

The fourth proportional to 242,688.30, 364,032.45 and 137,712.30 is: 206,568.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,688.30 : 364,032.45 = 137,712.30 : x
  2. Step 2: Convert to fraction form
    242,688.30/364,032.45 = 137,712.30/x
  3. Step 3: Cross multiply
    242,688.30x = 364,032.45 × 137,712.30
  4. Step 4: Simplify right side
    242,688.30x = 50,131,745,964.14
  5. Step 5: Solve for x
    x = 50,131,745,964.14/242,688.30
  6. Step 6: Final answer
    x = 206,568.45

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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.