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Finding the Fourth Proportional to 316,491.77, 436,726.15 and 180,515.45

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Solution

The fourth proportional to 316,491.77, 436,726.15 and 180,515.45 is: 249,092.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,491.77 : 436,726.15 = 180,515.45 : x
  2. Step 2: Convert to fraction form
    316,491.77/436,726.15 = 180,515.45/x
  3. Step 3: Cross multiply
    316,491.77x = 436,726.15 × 180,515.45
  4. Step 4: Simplify right side
    316,491.77x = 78,835,818,134.54
  5. Step 5: Solve for x
    x = 78,835,818,134.54/316,491.77
  6. Step 6: Final answer
    x = 249,092.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.