Home / 313,623.40-469,743.90-272,151.40

Finding the Fourth Proportional to 313,623.40, 469,743.90 and 272,151.40

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Solution

The fourth proportional to 313,623.40, 469,743.90 and 272,151.40 is: 407,627.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,623.40 : 469,743.90 = 272,151.40 : x
  2. Step 2: Convert to fraction form
    313,623.40/469,743.90 = 272,151.40/x
  3. Step 3: Cross multiply
    313,623.40x = 469,743.90 × 272,151.40
  4. Step 4: Simplify right side
    313,623.40x = 127,841,460,026.46
  5. Step 5: Solve for x
    x = 127,841,460,026.46/313,623.40
  6. Step 6: Final answer
    x = 407,627.30

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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.