Home / 211,333.30-317,047.79-121,417.54

Finding the Fourth Proportional to 211,333.30, 317,047.79 and 121,417.54

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Solution

The fourth proportional to 211,333.30, 317,047.79 and 121,417.54 is: 182,153.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,333.30 : 317,047.79 = 121,417.54 : x
  2. Step 2: Convert to fraction form
    211,333.30/317,047.79 = 121,417.54/x
  3. Step 3: Cross multiply
    211,333.30x = 317,047.79 × 121,417.54
  4. Step 4: Simplify right side
    211,333.30x = 38,495,162,235.16
  5. Step 5: Solve for x
    x = 38,495,162,235.16/211,333.30
  6. Step 6: Final answer
    x = 182,153.80

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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.