Home / 315,214.11-434,977.65-179,281.08

Finding the Fourth Proportional to 315,214.11, 434,977.65 and 179,281.08

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Solution

The fourth proportional to 315,214.11, 434,977.65 and 179,281.08 is: 247,397.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,214.11 : 434,977.65 = 179,281.08 : x
  2. Step 2: Convert to fraction form
    315,214.11/434,977.65 = 179,281.08/x
  3. Step 3: Cross multiply
    315,214.11x = 434,977.65 × 179,281.08
  4. Step 4: Simplify right side
    315,214.11x = 77,983,262,867.86
  5. Step 5: Solve for x
    x = 77,983,262,867.86/315,214.11
  6. Step 6: Final answer
    x = 247,397.75

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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.