Home / 313,472.16-432,724.02-211,635.57

Finding the Fourth Proportional to 313,472.16, 432,724.02 and 211,635.57

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Solution

The fourth proportional to 313,472.16, 432,724.02 and 211,635.57 is: 292,146.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,472.16 : 432,724.02 = 211,635.57 : x
  2. Step 2: Convert to fraction form
    313,472.16/432,724.02 = 211,635.57/x
  3. Step 3: Cross multiply
    313,472.16x = 432,724.02 × 211,635.57
  4. Step 4: Simplify right side
    313,472.16x = 91,579,793,020.40
  5. Step 5: Solve for x
    x = 91,579,793,020.40/313,472.16
  6. Step 6: Final answer
    x = 292,146.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.