Home / 278,071.20-417,009.60-144,907.20

Finding the Fourth Proportional to 278,071.20, 417,009.60 and 144,907.20

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Solution

The fourth proportional to 278,071.20, 417,009.60 and 144,907.20 is: 217,310.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,071.20 : 417,009.60 = 144,907.20 : x
  2. Step 2: Convert to fraction form
    278,071.20/417,009.60 = 144,907.20/x
  3. Step 3: Cross multiply
    278,071.20x = 417,009.60 × 144,907.20
  4. Step 4: Simplify right side
    278,071.20x = 60,427,693,509.12
  5. Step 5: Solve for x
    x = 60,427,693,509.12/278,071.20
  6. Step 6: Final answer
    x = 217,310.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.