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Finding the Fourth Proportional to 317,385.95, 476,076.83 and 80,726.63

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Solution

The fourth proportional to 317,385.95, 476,076.83 and 80,726.63 is: 121,089.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,385.95 : 476,076.83 = 80,726.63 : x
  2. Step 2: Convert to fraction form
    317,385.95/476,076.83 = 80,726.63/x
  3. Step 3: Cross multiply
    317,385.95x = 476,076.83 × 80,726.63
  4. Step 4: Simplify right side
    317,385.95x = 38,432,075,322.97
  5. Step 5: Solve for x
    x = 38,432,075,322.97/317,385.95
  6. Step 6: Final answer
    x = 121,089.41

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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.