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Finding the Fourth Proportional to 304,047.14, 419,703.45 and 272,160.90

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Solution

The fourth proportional to 304,047.14, 419,703.45 and 272,160.90 is: 375,688.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,047.14 : 419,703.45 = 272,160.90 : x
  2. Step 2: Convert to fraction form
    304,047.14/419,703.45 = 272,160.90/x
  3. Step 3: Cross multiply
    304,047.14x = 419,703.45 × 272,160.90
  4. Step 4: Simplify right side
    304,047.14x = 114,226,868,685.11
  5. Step 5: Solve for x
    x = 114,226,868,685.11/304,047.14
  6. Step 6: Final answer
    x = 375,688.02

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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.