Home / 313,457.13-432,681.21-186,131.79

Finding the Fourth Proportional to 313,457.13, 432,681.21 and 186,131.79

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Solution

The fourth proportional to 313,457.13, 432,681.21 and 186,131.79 is: 256,927.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,457.13 : 432,681.21 = 186,131.79 : x
  2. Step 2: Convert to fraction form
    313,457.13/432,681.21 = 186,131.79/x
  3. Step 3: Cross multiply
    313,457.13x = 432,681.21 × 186,131.79
  4. Step 4: Simplify right side
    313,457.13x = 80,535,728,116.67
  5. Step 5: Solve for x
    x = 80,535,728,116.67/313,457.13
  6. Step 6: Final answer
    x = 256,927.41

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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.