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Finding the Fourth Proportional to 316,563.20, 475,100.81 and 245,316.89

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Solution

The fourth proportional to 316,563.20, 475,100.81 and 245,316.89 is: 368,173.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,563.20 : 475,100.81 = 245,316.89 : x
  2. Step 2: Convert to fraction form
    316,563.20/475,100.81 = 245,316.89/x
  3. Step 3: Cross multiply
    316,563.20x = 475,100.81 × 245,316.89
  4. Step 4: Simplify right side
    316,563.20x = 116,550,249,543.59
  5. Step 5: Solve for x
    x = 116,550,249,543.59/316,563.20
  6. Step 6: Final answer
    x = 368,173.72

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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.