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Finding the Fourth Proportional to 358,803.86, 495,153.41 and 197,655.57

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Solution

The fourth proportional to 358,803.86, 495,153.41 and 197,655.57 is: 272,766.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,803.86 : 495,153.41 = 197,655.57 : x
  2. Step 2: Convert to fraction form
    358,803.86/495,153.41 = 197,655.57/x
  3. Step 3: Cross multiply
    358,803.86x = 495,153.41 × 197,655.57
  4. Step 4: Simplify right side
    358,803.86x = 97,869,828,502.72
  5. Step 5: Solve for x
    x = 97,869,828,502.72/358,803.86
  6. Step 6: Final answer
    x = 272,766.94

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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.