Home / 389,464.20-584,130.06-108,916.20

Finding the Fourth Proportional to 389,464.20, 584,130.06 and 108,916.20

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Solution

The fourth proportional to 389,464.20, 584,130.06 and 108,916.20 is: 163,355.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,464.20 : 584,130.06 = 108,916.20 : x
  2. Step 2: Convert to fraction form
    389,464.20/584,130.06 = 108,916.20/x
  3. Step 3: Cross multiply
    389,464.20x = 584,130.06 × 108,916.20
  4. Step 4: Simplify right side
    389,464.20x = 63,621,226,440.97
  5. Step 5: Solve for x
    x = 63,621,226,440.97/389,464.20
  6. Step 6: Final answer
    x = 163,355.78

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1.5x scale

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.