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Finding the Fourth Proportional to 304,380.60, 420,057.60 and 168,412.35

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Solution

The fourth proportional to 304,380.60, 420,057.60 and 168,412.35 is: 232,415.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,380.60 : 420,057.60 = 168,412.35 : x
  2. Step 2: Convert to fraction form
    304,380.60/420,057.60 = 168,412.35/x
  3. Step 3: Cross multiply
    304,380.60x = 420,057.60 × 168,412.35
  4. Step 4: Simplify right side
    304,380.60x = 70,742,887,551.36
  5. Step 5: Solve for x
    x = 70,742,887,551.36/304,380.60
  6. Step 6: Final answer
    x = 232,415.89

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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.