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Finding the Fourth Proportional to 317,423.96, 438,044.83 and 181,460.90

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Solution

The fourth proportional to 317,423.96, 438,044.83 and 181,460.90 is: 250,415.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,423.96 : 438,044.83 = 181,460.90 : x
  2. Step 2: Convert to fraction form
    317,423.96/438,044.83 = 181,460.90/x
  3. Step 3: Cross multiply
    317,423.96x = 438,044.83 × 181,460.90
  4. Step 4: Simplify right side
    317,423.96x = 79,488,009,733.61
  5. Step 5: Solve for x
    x = 79,488,009,733.61/317,423.96
  6. Step 6: Final answer
    x = 250,415.91

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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.