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Finding the Fourth Proportional to 304,671.86, 420,442.02 and 168,702.88

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Solution

The fourth proportional to 304,671.86, 420,442.02 and 168,702.88 is: 232,807.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,671.86 : 420,442.02 = 168,702.88 : x
  2. Step 2: Convert to fraction form
    304,671.86/420,442.02 = 168,702.88/x
  3. Step 3: Cross multiply
    304,671.86x = 420,442.02 × 168,702.88
  4. Step 4: Simplify right side
    304,671.86x = 70,929,779,647.02
  5. Step 5: Solve for x
    x = 70,929,779,647.02/304,671.86
  6. Step 6: Final answer
    x = 232,807.12

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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.