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Finding the Fourth Proportional to 304,442.39, 420,131.32 and 168,485.71

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Solution

The fourth proportional to 304,442.39, 420,131.32 and 168,485.71 is: 232,510.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,442.39 : 420,131.32 = 168,485.71 : x
  2. Step 2: Convert to fraction form
    304,442.39/420,131.32 = 168,485.71/x
  3. Step 3: Cross multiply
    304,442.39x = 420,131.32 × 168,485.71
  4. Step 4: Simplify right side
    304,442.39x = 70,786,124,832.07
  5. Step 5: Solve for x
    x = 70,786,124,832.07/304,442.39
  6. Step 6: Final answer
    x = 232,510.74

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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.