Home / 380,254.36-570,364.23-127,515.41

Finding the Fourth Proportional to 380,254.36, 570,364.23 and 127,515.41

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Solution

The fourth proportional to 380,254.36, 570,364.23 and 127,515.41 is: 191,267.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,254.36 : 570,364.23 = 127,515.41 : x
  2. Step 2: Convert to fraction form
    380,254.36/570,364.23 = 127,515.41/x
  3. Step 3: Cross multiply
    380,254.36x = 570,364.23 × 127,515.41
  4. Step 4: Simplify right side
    380,254.36x = 72,730,228,000.21
  5. Step 5: Solve for x
    x = 72,730,228,000.21/380,254.36
  6. Step 6: Final answer
    x = 191,267.31

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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.