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Finding the Fourth Proportional to 304,424.12, 420,164.70 and 183,585.08

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Solution

The fourth proportional to 304,424.12, 420,164.70 and 183,585.08 is: 253,383.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,424.12 : 420,164.70 = 183,585.08 : x
  2. Step 2: Convert to fraction form
    304,424.12/420,164.70 = 183,585.08/x
  3. Step 3: Cross multiply
    304,424.12x = 420,164.70 × 183,585.08
  4. Step 4: Simplify right side
    304,424.12x = 77,135,969,700.71
  5. Step 5: Solve for x
    x = 77,135,969,700.71/304,424.12
  6. Step 6: Final answer
    x = 253,383.24

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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.