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Finding the Fourth Proportional to 358,705.95, 495,017.37 and 197,566.58

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Solution

The fourth proportional to 358,705.95, 495,017.37 and 197,566.58 is: 272,643.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,705.95 : 495,017.37 = 197,566.58 : x
  2. Step 2: Convert to fraction form
    358,705.95/495,017.37 = 197,566.58/x
  3. Step 3: Cross multiply
    358,705.95x = 495,017.37 × 197,566.58
  4. Step 4: Simplify right side
    358,705.95x = 97,798,886,356.41
  5. Step 5: Solve for x
    x = 97,798,886,356.41/358,705.95
  6. Step 6: Final answer
    x = 272,643.61

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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.