Home / 211,436.40-316,545.39-140,429.97

Finding the Fourth Proportional to 211,436.40, 316,545.39 and 140,429.97

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Solution

The fourth proportional to 211,436.40, 316,545.39 and 140,429.97 is: 210,240.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,436.40 : 316,545.39 = 140,429.97 : x
  2. Step 2: Convert to fraction form
    211,436.40/316,545.39 = 140,429.97/x
  3. Step 3: Cross multiply
    211,436.40x = 316,545.39 × 140,429.97
  4. Step 4: Simplify right side
    211,436.40x = 44,452,459,621.34
  5. Step 5: Solve for x
    x = 44,452,459,621.34/211,436.40
  6. Step 6: Final answer
    x = 210,240.34

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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.