Home / 360,853.92-497,857.04-209,826.72

Finding the Fourth Proportional to 360,853.92, 497,857.04 and 209,826.72

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Solution

The fourth proportional to 360,853.92, 497,857.04 and 209,826.72 is: 289,490.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,853.92 : 497,857.04 = 209,826.72 : x
  2. Step 2: Convert to fraction form
    360,853.92/497,857.04 = 209,826.72/x
  3. Step 3: Cross multiply
    360,853.92x = 497,857.04 × 209,826.72
  4. Step 4: Simplify right side
    360,853.92x = 104,463,709,732.11
  5. Step 5: Solve for x
    x = 104,463,709,732.11/360,853.92
  6. Step 6: Final answer
    x = 289,490.30

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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.