Home / 389,830.64-584,979.20-168,214.64

Finding the Fourth Proportional to 389,830.64, 584,979.20 and 168,214.64

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Solution

The fourth proportional to 389,830.64, 584,979.20 and 168,214.64 is: 252,422.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,830.64 : 584,979.20 = 168,214.64 : x
  2. Step 2: Convert to fraction form
    389,830.64/584,979.20 = 168,214.64/x
  3. Step 3: Cross multiply
    389,830.64x = 584,979.20 × 168,214.64
  4. Step 4: Simplify right side
    389,830.64x = 98,402,065,535.49
  5. Step 5: Solve for x
    x = 98,402,065,535.49/389,830.64
  6. Step 6: Final answer
    x = 252,422.60

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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.