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Finding the Fourth Proportional to 291,979.47, 437,968.49 and 70,363.47

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Solution

The fourth proportional to 291,979.47, 437,968.49 and 70,363.47 is: 105,545.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,979.47 : 437,968.49 = 70,363.47 : x
  2. Step 2: Convert to fraction form
    291,979.47/437,968.49 = 70,363.47/x
  3. Step 3: Cross multiply
    291,979.47x = 437,968.49 × 70,363.47
  4. Step 4: Simplify right side
    291,979.47x = 30,816,982,355.24
  5. Step 5: Solve for x
    x = 30,816,982,355.24/291,979.47
  6. Step 6: Final answer
    x = 105,545.03

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1.5x scale

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.