Home / 389,624.40-584,436.60-140,216.40

Finding the Fourth Proportional to 389,624.40, 584,436.60 and 140,216.40

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Solution

The fourth proportional to 389,624.40, 584,436.60 and 140,216.40 is: 210,324.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,624.40 : 584,436.60 = 140,216.40 : x
  2. Step 2: Convert to fraction form
    389,624.40/584,436.60 = 140,216.40/x
  3. Step 3: Cross multiply
    389,624.40x = 584,436.60 × 140,216.40
  4. Step 4: Simplify right side
    389,624.40x = 81,947,596,080.24
  5. Step 5: Solve for x
    x = 81,947,596,080.24/389,624.40
  6. Step 6: Final answer
    x = 210,324.60

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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.