Home / 371,545.20-557,316.78-105,308.02

Finding the Fourth Proportional to 371,545.20, 557,316.78 and 105,308.02

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Solution

The fourth proportional to 371,545.20, 557,316.78 and 105,308.02 is: 157,961.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,545.20 : 557,316.78 = 105,308.02 : x
  2. Step 2: Convert to fraction form
    371,545.20/557,316.78 = 105,308.02/x
  3. Step 3: Cross multiply
    371,545.20x = 557,316.78 × 105,308.02
  4. Step 4: Simplify right side
    371,545.20x = 58,689,928,779.95
  5. Step 5: Solve for x
    x = 58,689,928,779.95/371,545.20
  6. Step 6: Final answer
    x = 157,961.75

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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.