Home / 389,941.13-584,911.70-140,623.13

Finding the Fourth Proportional to 389,941.13, 584,911.70 and 140,623.13

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Solution

The fourth proportional to 389,941.13, 584,911.70 and 140,623.13 is: 210,934.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,941.13 : 584,911.70 = 140,623.13 : x
  2. Step 2: Convert to fraction form
    389,941.13/584,911.70 = 140,623.13/x
  3. Step 3: Cross multiply
    389,941.13x = 584,911.70 × 140,623.13
  4. Step 4: Simplify right side
    389,941.13x = 82,252,110,399.95
  5. Step 5: Solve for x
    x = 82,252,110,399.95/389,941.13
  6. Step 6: Final answer
    x = 210,934.69

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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.