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Finding the Fourth Proportional to 272,507.47, 411,320.81 and 272,507.47

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Solution

The fourth proportional to 272,507.47, 411,320.81 and 272,507.47 is: 411,320.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,507.47 : 411,320.81 = 272,507.47 : x
  2. Step 2: Convert to fraction form
    272,507.47/411,320.81 = 272,507.47/x
  3. Step 3: Cross multiply
    272,507.47x = 411,320.81 × 272,507.47
  4. Step 4: Simplify right side
    272,507.47x = 112,087,992,944.42
  5. Step 5: Solve for x
    x = 112,087,992,944.42/272,507.47
  6. Step 6: Final answer
    x = 411,320.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.