Home / 278,165.28-417,419.23-109,656.93

Finding the Fourth Proportional to 278,165.28, 417,419.23 and 109,656.93

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Solution

The fourth proportional to 278,165.28, 417,419.23 and 109,656.93 is: 164,552.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,165.28 : 417,419.23 = 109,656.93 : x
  2. Step 2: Convert to fraction form
    278,165.28/417,419.23 = 109,656.93/x
  3. Step 3: Cross multiply
    278,165.28x = 417,419.23 × 109,656.93
  4. Step 4: Simplify right side
    278,165.28x = 45,772,909,856.51
  5. Step 5: Solve for x
    x = 45,772,909,856.51/278,165.28
  6. Step 6: Final answer
    x = 164,552.93

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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.