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Finding the Fourth Proportional to 308,363.04, 425,533.44 and 187,508.16

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Solution

The fourth proportional to 308,363.04, 425,533.44 and 187,508.16 is: 258,756.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,363.04 : 425,533.44 = 187,508.16 : x
  2. Step 2: Convert to fraction form
    308,363.04/425,533.44 = 187,508.16/x
  3. Step 3: Cross multiply
    308,363.04x = 425,533.44 × 187,508.16
  4. Step 4: Simplify right side
    308,363.04x = 79,790,992,352.87
  5. Step 5: Solve for x
    x = 79,790,992,352.87/308,363.04
  6. Step 6: Final answer
    x = 258,756.67

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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.