Home / 388,632.43-536,313.83-225,320.68

Finding the Fourth Proportional to 388,632.43, 536,313.83 and 225,320.68

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Solution

The fourth proportional to 388,632.43, 536,313.83 and 225,320.68 is: 310,943.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,632.43 : 536,313.83 = 225,320.68 : x
  2. Step 2: Convert to fraction form
    388,632.43/536,313.83 = 225,320.68/x
  3. Step 3: Cross multiply
    388,632.43x = 536,313.83 × 225,320.68
  4. Step 4: Simplify right side
    388,632.43x = 120,842,596,869.00
  5. Step 5: Solve for x
    x = 120,842,596,869.00/388,632.43
  6. Step 6: Final answer
    x = 310,943.16

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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.