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Finding the Fourth Proportional to 368,715.39, 553,073.09 and 210,833.10

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Solution

The fourth proportional to 368,715.39, 553,073.09 and 210,833.10 is: 316,249.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,715.39 : 553,073.09 = 210,833.10 : x
  2. Step 2: Convert to fraction form
    368,715.39/553,073.09 = 210,833.10/x
  3. Step 3: Cross multiply
    368,715.39x = 553,073.09 × 210,833.10
  4. Step 4: Simplify right side
    368,715.39x = 116,606,113,037.11
  5. Step 5: Solve for x
    x = 116,606,113,037.11/368,715.39
  6. Step 6: Final answer
    x = 316,249.65

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1.5x scale

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.