Home / 278,901.20-384,881.54-151,577.70

Finding the Fourth Proportional to 278,901.20, 384,881.54 and 151,577.70

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Solution

The fourth proportional to 278,901.20, 384,881.54 and 151,577.70 is: 209,176.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,901.20 : 384,881.54 = 151,577.70 : x
  2. Step 2: Convert to fraction form
    278,901.20/384,881.54 = 151,577.70/x
  3. Step 3: Cross multiply
    278,901.20x = 384,881.54 × 151,577.70
  4. Step 4: Simplify right side
    278,901.20x = 58,339,457,847.77
  5. Step 5: Solve for x
    x = 58,339,457,847.77/278,901.20
  6. Step 6: Final answer
    x = 209,176.08

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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.