Home / 388,701.12-536,224.28-227,457.26

Finding the Fourth Proportional to 388,701.12, 536,224.28 and 227,457.26

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Solution

The fourth proportional to 388,701.12, 536,224.28 and 227,457.26 is: 313,783.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,701.12 : 536,224.28 = 227,457.26 : x
  2. Step 2: Convert to fraction form
    388,701.12/536,224.28 = 227,457.26/x
  3. Step 3: Cross multiply
    388,701.12x = 536,224.28 × 227,457.26
  4. Step 4: Simplify right side
    388,701.12x = 121,968,101,655.87
  5. Step 5: Solve for x
    x = 121,968,101,655.87/388,701.12
  6. Step 6: Final answer
    x = 313,783.77

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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.