Home / 278,480.34-384,303.33-151,155.90

Finding the Fourth Proportional to 278,480.34, 384,303.33 and 151,155.90

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Solution

The fourth proportional to 278,480.34, 384,303.33 and 151,155.90 is: 208,595.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,480.34 : 384,303.33 = 151,155.90 : x
  2. Step 2: Convert to fraction form
    278,480.34/384,303.33 = 151,155.90/x
  3. Step 3: Cross multiply
    278,480.34x = 384,303.33 × 151,155.90
  4. Step 4: Simplify right side
    278,480.34x = 58,089,715,719.15
  5. Step 5: Solve for x
    x = 58,089,715,719.15/278,480.34
  6. Step 6: Final answer
    x = 208,595.39

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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.