Home / 361,379.03-498,689.61-208,423.63

Finding the Fourth Proportional to 361,379.03, 498,689.61 and 208,423.63

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Solution

The fourth proportional to 361,379.03, 498,689.61 and 208,423.63 is: 287,616.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,379.03 : 498,689.61 = 208,423.63 : x
  2. Step 2: Convert to fraction form
    361,379.03/498,689.61 = 208,423.63/x
  3. Step 3: Cross multiply
    361,379.03x = 498,689.61 × 208,423.63
  4. Step 4: Simplify right side
    361,379.03x = 103,938,696,266.04
  5. Step 5: Solve for x
    x = 103,938,696,266.04/361,379.03
  6. Step 6: Final answer
    x = 287,616.84

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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.