Home / 388,435.02-536,050.35-218,675.22

Finding the Fourth Proportional to 388,435.02, 536,050.35 and 218,675.22

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Solution

The fourth proportional to 388,435.02, 536,050.35 and 218,675.22 is: 301,777.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,435.02 : 536,050.35 = 218,675.22 : x
  2. Step 2: Convert to fraction form
    388,435.02/536,050.35 = 218,675.22/x
  3. Step 3: Cross multiply
    388,435.02x = 536,050.35 × 218,675.22
  4. Step 4: Simplify right side
    388,435.02x = 117,220,928,217.33
  5. Step 5: Solve for x
    x = 117,220,928,217.33/388,435.02
  6. Step 6: Final answer
    x = 301,777.45

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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.