Home / 317,934.72-438,641.39-197,031.89

Finding the Fourth Proportional to 317,934.72, 438,641.39 and 197,031.89

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Solution

The fourth proportional to 317,934.72, 438,641.39 and 197,031.89 is: 271,836.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,934.72 : 438,641.39 = 197,031.89 : x
  2. Step 2: Convert to fraction form
    317,934.72/438,641.39 = 197,031.89/x
  3. Step 3: Cross multiply
    317,934.72x = 438,641.39 × 197,031.89
  4. Step 4: Simplify right side
    317,934.72x = 86,426,343,693.11
  5. Step 5: Solve for x
    x = 86,426,343,693.11/317,934.72
  6. Step 6: Final answer
    x = 271,836.76

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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.