Home / 313,530.32-432,434.76-217,989.20

Finding the Fourth Proportional to 313,530.32, 432,434.76 and 217,989.20

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Solution

The fourth proportional to 313,530.32, 432,434.76 and 217,989.20 is: 300,660.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,530.32 : 432,434.76 = 217,989.20 : x
  2. Step 2: Convert to fraction form
    313,530.32/432,434.76 = 217,989.20/x
  3. Step 3: Cross multiply
    313,530.32x = 432,434.76 × 217,989.20
  4. Step 4: Simplify right side
    313,530.32x = 94,266,107,384.59
  5. Step 5: Solve for x
    x = 94,266,107,384.59/313,530.32
  6. Step 6: Final answer
    x = 300,660.26

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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.