Home / 423,017.30-634,339.15-198,196.47

Finding the Fourth Proportional to 423,017.30, 634,339.15 and 198,196.47

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Solution

The fourth proportional to 423,017.30, 634,339.15 and 198,196.47 is: 297,207.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,017.30 : 634,339.15 = 198,196.47 : x
  2. Step 2: Convert to fraction form
    423,017.30/634,339.15 = 198,196.47/x
  3. Step 3: Cross multiply
    423,017.30x = 634,339.15 × 198,196.47
  4. Step 4: Simplify right side
    423,017.30x = 125,723,779,817.31
  5. Step 5: Solve for x
    x = 125,723,779,817.31/423,017.30
  6. Step 6: Final answer
    x = 297,207.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.