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Finding the Fourth Proportional to 358,498.55, 494,742.12 and 197,368.58

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Solution

The fourth proportional to 358,498.55, 494,742.12 and 197,368.58 is: 272,376.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,498.55 : 494,742.12 = 197,368.58 : x
  2. Step 2: Convert to fraction form
    358,498.55/494,742.12 = 197,368.58/x
  3. Step 3: Cross multiply
    358,498.55x = 494,742.12 × 197,368.58
  4. Step 4: Simplify right side
    358,498.55x = 97,646,549,690.59
  5. Step 5: Solve for x
    x = 97,646,549,690.59/358,498.55
  6. Step 6: Final answer
    x = 272,376.41

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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.