Home / 211,209.27-316,813.90-140,270.47

Finding the Fourth Proportional to 211,209.27, 316,813.90 and 140,270.47

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Solution

The fourth proportional to 211,209.27, 316,813.90 and 140,270.47 is: 210,405.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,209.27 : 316,813.90 = 140,270.47 : x
  2. Step 2: Convert to fraction form
    211,209.27/316,813.90 = 140,270.47/x
  3. Step 3: Cross multiply
    211,209.27x = 316,813.90 × 140,270.47
  4. Step 4: Simplify right side
    211,209.27x = 44,439,633,775.83
  5. Step 5: Solve for x
    x = 44,439,633,775.83/211,209.27
  6. Step 6: Final answer
    x = 210,405.70

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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.