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Finding the Fourth Proportional to 358,953.49, 495,332.39 and 197,808.50

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Solution

The fourth proportional to 358,953.49, 495,332.39 and 197,808.50 is: 272,962.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,953.49 : 495,332.39 = 197,808.50 : x
  2. Step 2: Convert to fraction form
    358,953.49/495,332.39 = 197,808.50/x
  3. Step 3: Cross multiply
    358,953.49x = 495,332.39 × 197,808.50
  4. Step 4: Simplify right side
    358,953.49x = 97,980,957,067.32
  5. Step 5: Solve for x
    x = 97,980,957,067.32/358,953.49
  6. Step 6: Final answer
    x = 272,962.82

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1.5x scale

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.