Home / 391,244.40-586,429.20-166,566.60

Finding the Fourth Proportional to 391,244.40, 586,429.20 and 166,566.60

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Solution

The fourth proportional to 391,244.40, 586,429.20 and 166,566.60 is: 249,663.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,244.40 : 586,429.20 = 166,566.60 : x
  2. Step 2: Convert to fraction form
    391,244.40/586,429.20 = 166,566.60/x
  3. Step 3: Cross multiply
    391,244.40x = 586,429.20 × 166,566.60
  4. Step 4: Simplify right side
    391,244.40x = 97,679,517,984.72
  5. Step 5: Solve for x
    x = 97,679,517,984.72/391,244.40
  6. Step 6: Final answer
    x = 249,663.68

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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.