Home / 278,779.02-384,719.70-151,454.70

Finding the Fourth Proportional to 278,779.02, 384,719.70 and 151,454.70

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Solution

The fourth proportional to 278,779.02, 384,719.70 and 151,454.70 is: 209,010.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,779.02 : 384,719.70 = 151,454.70 : x
  2. Step 2: Convert to fraction form
    278,779.02/384,719.70 = 151,454.70/x
  3. Step 3: Cross multiply
    278,779.02x = 384,719.70 × 151,454.70
  4. Step 4: Simplify right side
    278,779.02x = 58,267,606,747.59
  5. Step 5: Solve for x
    x = 58,267,606,747.59/278,779.02
  6. Step 6: Final answer
    x = 209,010.01

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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.