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Finding the Fourth Proportional to 217,307.58, 299,901.08 and 136,804.11

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Solution

The fourth proportional to 217,307.58, 299,901.08 and 136,804.11 is: 188,800.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,307.58 : 299,901.08 = 136,804.11 : x
  2. Step 2: Convert to fraction form
    217,307.58/299,901.08 = 136,804.11/x
  3. Step 3: Cross multiply
    217,307.58x = 299,901.08 × 136,804.11
  4. Step 4: Simplify right side
    217,307.58x = 41,027,699,653.42
  5. Step 5: Solve for x
    x = 41,027,699,653.42/217,307.58
  6. Step 6: Final answer
    x = 188,800.13

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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.