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Finding the Fourth Proportional to 272,862.30, 409,293.45 and 262,364.70

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Solution

The fourth proportional to 272,862.30, 409,293.45 and 262,364.70 is: 393,547.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,862.30 : 409,293.45 = 262,364.70 : x
  2. Step 2: Convert to fraction form
    272,862.30/409,293.45 = 262,364.70/x
  3. Step 3: Cross multiply
    272,862.30x = 409,293.45 × 262,364.70
  4. Step 4: Simplify right side
    272,862.30x = 107,384,153,221.22
  5. Step 5: Solve for x
    x = 107,384,153,221.22/272,862.30
  6. Step 6: Final answer
    x = 393,547.05

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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.