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Finding the Fourth Proportional to 355,690.04, 490,864.00 and 194,545.10

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Solution

The fourth proportional to 355,690.04, 490,864.00 and 194,545.10 is: 268,478.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,690.04 : 490,864.00 = 194,545.10 : x
  2. Step 2: Convert to fraction form
    355,690.04/490,864.00 = 194,545.10/x
  3. Step 3: Cross multiply
    355,690.04x = 490,864.00 × 194,545.10
  4. Step 4: Simplify right side
    355,690.04x = 95,495,184,310.86
  5. Step 5: Solve for x
    x = 95,495,184,310.86/355,690.04
  6. Step 6: Final answer
    x = 268,478.66

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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.