Home / 278,848.01-384,779.01-157,963.41

Finding the Fourth Proportional to 278,848.01, 384,779.01 and 157,963.41

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Solution

The fourth proportional to 278,848.01, 384,779.01 and 157,963.41 is: 217,971.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,848.01 : 384,779.01 = 157,963.41 : x
  2. Step 2: Convert to fraction form
    278,848.01/384,779.01 = 157,963.41/x
  3. Step 3: Cross multiply
    278,848.01x = 384,779.01 × 157,963.41
  4. Step 4: Simplify right side
    278,848.01x = 60,781,004,516.02
  5. Step 5: Solve for x
    x = 60,781,004,516.02/278,848.01
  6. Step 6: Final answer
    x = 217,971.81

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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.