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Finding the Fourth Proportional to 358,717.08, 495,009.72 and 197,541.72

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Solution

The fourth proportional to 358,717.08, 495,009.72 and 197,541.72 is: 272,596.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,717.08 : 495,009.72 = 197,541.72 : x
  2. Step 2: Convert to fraction form
    358,717.08/495,009.72 = 197,541.72/x
  3. Step 3: Cross multiply
    358,717.08x = 495,009.72 × 197,541.72
  4. Step 4: Simplify right side
    358,717.08x = 97,785,071,505.52
  5. Step 5: Solve for x
    x = 97,785,071,505.52/358,717.08
  6. Step 6: Final answer
    x = 272,596.64

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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.