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Finding the Fourth Proportional to 210,062.79, 289,885.32 and 119,418.75

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Solution

The fourth proportional to 210,062.79, 289,885.32 and 119,418.75 is: 164,797.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,062.79 : 289,885.32 = 119,418.75 : x
  2. Step 2: Convert to fraction form
    210,062.79/289,885.32 = 119,418.75/x
  3. Step 3: Cross multiply
    210,062.79x = 289,885.32 × 119,418.75
  4. Step 4: Simplify right side
    210,062.79x = 34,617,742,557.75
  5. Step 5: Solve for x
    x = 34,617,742,557.75/210,062.79
  6. Step 6: Final answer
    x = 164,797.12

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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.