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Finding the Fourth Proportional to 304,385.64, 420,044.10 and 168,416.04

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Solution

The fourth proportional to 304,385.64, 420,044.10 and 168,416.04 is: 232,409.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,385.64 : 420,044.10 = 168,416.04 : x
  2. Step 2: Convert to fraction form
    304,385.64/420,044.10 = 168,416.04/x
  3. Step 3: Cross multiply
    304,385.64x = 420,044.10 × 168,416.04
  4. Step 4: Simplify right side
    304,385.64x = 70,742,163,947.36
  5. Step 5: Solve for x
    x = 70,742,163,947.36/304,385.64
  6. Step 6: Final answer
    x = 232,409.66

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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.