Home / 278,038.17-417,053.37-109,559.96

Finding the Fourth Proportional to 278,038.17, 417,053.37 and 109,559.96

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Solution

The fourth proportional to 278,038.17, 417,053.37 and 109,559.96 is: 164,338.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,038.17 : 417,053.37 = 109,559.96 : x
  2. Step 2: Convert to fraction form
    278,038.17/417,053.37 = 109,559.96/x
  3. Step 3: Cross multiply
    278,038.17x = 417,053.37 × 109,559.96
  4. Step 4: Simplify right side
    278,038.17x = 45,692,349,349.20
  5. Step 5: Solve for x
    x = 45,692,349,349.20/278,038.17
  6. Step 6: Final answer
    x = 164,338.40

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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.