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Finding the Fourth Proportional to 380,078.92, 524,487.18 and 210,302.92

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Solution

The fourth proportional to 380,078.92, 524,487.18 and 210,302.92 is: 290,206.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,078.92 : 524,487.18 = 210,302.92 : x
  2. Step 2: Convert to fraction form
    380,078.92/524,487.18 = 210,302.92/x
  3. Step 3: Cross multiply
    380,078.92x = 524,487.18 × 210,302.92
  4. Step 4: Simplify right side
    380,078.92x = 110,301,185,456.57
  5. Step 5: Solve for x
    x = 110,301,185,456.57/380,078.92
  6. Step 6: Final answer
    x = 290,206.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.