Home / 380,378.10-570,246.03-239,826.90

Finding the Fourth Proportional to 380,378.10, 570,246.03 and 239,826.90

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Solution

The fourth proportional to 380,378.10, 570,246.03 and 239,826.90 is: 359,537.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,378.10 : 570,246.03 = 239,826.90 : x
  2. Step 2: Convert to fraction form
    380,378.10/570,246.03 = 239,826.90/x
  3. Step 3: Cross multiply
    380,378.10x = 570,246.03 × 239,826.90
  4. Step 4: Simplify right side
    380,378.10x = 136,760,337,612.21
  5. Step 5: Solve for x
    x = 136,760,337,612.21/380,378.10
  6. Step 6: Final answer
    x = 359,537.89

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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.