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Finding the Fourth Proportional to 304,428.12, 420,279.72 and 183,600.14

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Solution

The fourth proportional to 304,428.12, 420,279.72 and 183,600.14 is: 253,470.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,428.12 : 420,279.72 = 183,600.14 : x
  2. Step 2: Convert to fraction form
    304,428.12/420,279.72 = 183,600.14/x
  3. Step 3: Cross multiply
    304,428.12x = 420,279.72 × 183,600.14
  4. Step 4: Simplify right side
    304,428.12x = 77,163,415,431.16
  5. Step 5: Solve for x
    x = 77,163,415,431.16/304,428.12
  6. Step 6: Final answer
    x = 253,470.07

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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.