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Finding the Fourth Proportional to 358,953.93, 495,359.73 and 197,814.74

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Solution

The fourth proportional to 358,953.93, 495,359.73 and 197,814.74 is: 272,986.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,953.93 : 495,359.73 = 197,814.74 : x
  2. Step 2: Convert to fraction form
    358,953.93/495,359.73 = 197,814.74/x
  3. Step 3: Cross multiply
    358,953.93x = 495,359.73 × 197,814.74
  4. Step 4: Simplify right side
    358,953.93x = 97,989,453,719.62
  5. Step 5: Solve for x
    x = 97,989,453,719.62/358,953.93
  6. Step 6: Final answer
    x = 272,986.16

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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.