Home / 389,004.12-583,604.58-108,521.16

Finding the Fourth Proportional to 389,004.12, 583,604.58 and 108,521.16

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Solution

The fourth proportional to 389,004.12, 583,604.58 and 108,521.16 is: 162,809.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,004.12 : 583,604.58 = 108,521.16 : x
  2. Step 2: Convert to fraction form
    389,004.12/583,604.58 = 108,521.16/x
  3. Step 3: Cross multiply
    389,004.12x = 583,604.58 × 108,521.16
  4. Step 4: Simplify right side
    389,004.12x = 63,333,446,002.91
  5. Step 5: Solve for x
    x = 63,333,446,002.91/389,004.12
  6. Step 6: Final answer
    x = 162,809.19

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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.