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Finding the Fourth Proportional to 245,925.92, 339,374.16 and 138,496.16

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Solution

The fourth proportional to 245,925.92, 339,374.16 and 138,496.16 is: 191,122.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,925.92 : 339,374.16 = 138,496.16 : x
  2. Step 2: Convert to fraction form
    245,925.92/339,374.16 = 138,496.16/x
  3. Step 3: Cross multiply
    245,925.92x = 339,374.16 × 138,496.16
  4. Step 4: Simplify right side
    245,925.92x = 47,002,017,963.23
  5. Step 5: Solve for x
    x = 47,002,017,963.23/245,925.92
  6. Step 6: Final answer
    x = 191,122.67

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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.