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Finding the Fourth Proportional to 315,547.60, 435,458.06 and 179,591.90

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Solution

The fourth proportional to 315,547.60, 435,458.06 and 179,591.90 is: 247,838.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,547.60 : 435,458.06 = 179,591.90 : x
  2. Step 2: Convert to fraction form
    315,547.60/435,458.06 = 179,591.90/x
  3. Step 3: Cross multiply
    315,547.60x = 435,458.06 × 179,591.90
  4. Step 4: Simplify right side
    315,547.60x = 78,204,740,365.71
  5. Step 5: Solve for x
    x = 78,204,740,365.71/315,547.60
  6. Step 6: Final answer
    x = 247,838.17

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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.