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Finding the Fourth Proportional to 370,291.77, 554,488.92 and 256,281.63

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Solution

The fourth proportional to 370,291.77, 554,488.92 and 256,281.63 is: 383,765.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,291.77 : 554,488.92 = 256,281.63 : x
  2. Step 2: Convert to fraction form
    370,291.77/554,488.92 = 256,281.63/x
  3. Step 3: Cross multiply
    370,291.77x = 554,488.92 × 256,281.63
  4. Step 4: Simplify right side
    370,291.77x = 142,105,324,234.54
  5. Step 5: Solve for x
    x = 142,105,324,234.54/370,291.77
  6. Step 6: Final answer
    x = 383,765.82

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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.