Home / 380,147.19-570,347.46-127,452.66

Finding the Fourth Proportional to 380,147.19, 570,347.46 and 127,452.66

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Solution

The fourth proportional to 380,147.19, 570,347.46 and 127,452.66 is: 191,221.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,147.19 : 570,347.46 = 127,452.66 : x
  2. Step 2: Convert to fraction form
    380,147.19/570,347.46 = 127,452.66/x
  3. Step 3: Cross multiply
    380,147.19x = 570,347.46 × 127,452.66
  4. Step 4: Simplify right side
    380,147.19x = 72,692,300,901.24
  5. Step 5: Solve for x
    x = 72,692,300,901.24/380,147.19
  6. Step 6: Final answer
    x = 191,221.46

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1.5x scale

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.