Home / 198,419.64-297,678.90-58,178.26

Finding the Fourth Proportional to 198,419.64, 297,678.90 and 58,178.26

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Solution

The fourth proportional to 198,419.64, 297,678.90 and 58,178.26 is: 87,281.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,419.64 : 297,678.90 = 58,178.26 : x
  2. Step 2: Convert to fraction form
    198,419.64/297,678.90 = 58,178.26/x
  3. Step 3: Cross multiply
    198,419.64x = 297,678.90 × 58,178.26
  4. Step 4: Simplify right side
    198,419.64x = 17,318,440,440.71
  5. Step 5: Solve for x
    x = 17,318,440,440.71/198,419.64
  6. Step 6: Final answer
    x = 87,281.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.