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Finding the Fourth Proportional to 358,784.56, 495,161.58 and 197,656.12

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Solution

The fourth proportional to 358,784.56, 495,161.58 and 197,656.12 is: 272,786.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,784.56 : 495,161.58 = 197,656.12 : x
  2. Step 2: Convert to fraction form
    358,784.56/495,161.58 = 197,656.12/x
  3. Step 3: Cross multiply
    358,784.56x = 495,161.58 × 197,656.12
  4. Step 4: Simplify right side
    358,784.56x = 97,871,716,675.87
  5. Step 5: Solve for x
    x = 97,871,716,675.87/358,784.56
  6. Step 6: Final answer
    x = 272,786.87

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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.