Home / 388,487.17-536,113.25-225,175.24

Finding the Fourth Proportional to 388,487.17, 536,113.25 and 225,175.24

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Solution

The fourth proportional to 388,487.17, 536,113.25 and 225,175.24 is: 310,742.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,487.17 : 536,113.25 = 225,175.24 : x
  2. Step 2: Convert to fraction form
    388,487.17/536,113.25 = 225,175.24/x
  3. Step 3: Cross multiply
    388,487.17x = 536,113.25 × 225,175.24
  4. Step 4: Simplify right side
    388,487.17x = 120,719,430,124.60
  5. Step 5: Solve for x
    x = 120,719,430,124.60/388,487.17
  6. Step 6: Final answer
    x = 310,742.38

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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.