Home / 388,927-583,390.50-126,271

Finding the Fourth Proportional to 388,927, 583,390.50 and 126,271

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Solution

The fourth proportional to 388,927, 583,390.50 and 126,271 is: 189,406.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,927 : 583,390.50 = 126,271 : x
  2. Step 2: Convert to fraction form
    388,927/583,390.50 = 126,271/x
  3. Step 3: Cross multiply
    388,927x = 583,390.50 × 126,271
  4. Step 4: Simplify right side
    388,927x = 73,665,301,825.50
  5. Step 5: Solve for x
    x = 73,665,301,825.50/388,927
  6. Step 6: Final answer
    x = 189,406.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.