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Finding the Fourth Proportional to 307,217.68, 460,863.36 and 290,421.52

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Solution

The fourth proportional to 307,217.68, 460,863.36 and 290,421.52 is: 435,667.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,217.68 : 460,863.36 = 290,421.52 : x
  2. Step 2: Convert to fraction form
    307,217.68/460,863.36 = 290,421.52/x
  3. Step 3: Cross multiply
    307,217.68x = 460,863.36 × 290,421.52
  4. Step 4: Simplify right side
    307,217.68x = 133,844,637,523.51
  5. Step 5: Solve for x
    x = 133,844,637,523.51/307,217.68
  6. Step 6: Final answer
    x = 435,667.11

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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.