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Finding the Fourth Proportional to 272,807.76, 376,173.81 and 186,780.90

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Solution

The fourth proportional to 272,807.76, 376,173.81 and 186,780.90 is: 257,551.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,807.76 : 376,173.81 = 186,780.90 : x
  2. Step 2: Convert to fraction form
    272,807.76/376,173.81 = 186,780.90/x
  3. Step 3: Cross multiply
    272,807.76x = 376,173.81 × 186,780.90
  4. Step 4: Simplify right side
    272,807.76x = 70,262,082,788.23
  5. Step 5: Solve for x
    x = 70,262,082,788.23/272,807.76
  6. Step 6: Final answer
    x = 257,551.63

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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.