Home / 278,526.54-384,368.40-151,202.10

Finding the Fourth Proportional to 278,526.54, 384,368.40 and 151,202.10

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Solution

The fourth proportional to 278,526.54, 384,368.40 and 151,202.10 is: 208,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,526.54 : 384,368.40 = 151,202.10 : x
  2. Step 2: Convert to fraction form
    278,526.54/384,368.40 = 151,202.10/x
  3. Step 3: Cross multiply
    278,526.54x = 384,368.40 × 151,202.10
  4. Step 4: Simplify right side
    278,526.54x = 58,117,309,253.64
  5. Step 5: Solve for x
    x = 58,117,309,253.64/278,526.54
  6. Step 6: Final answer
    x = 208,659.86

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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.