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Finding the Fourth Proportional to 385,323.61, 531,853.55 and 224,209.89

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Solution

The fourth proportional to 385,323.61, 531,853.55 and 224,209.89 is: 309,471.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,323.61 : 531,853.55 = 224,209.89 : x
  2. Step 2: Convert to fraction form
    385,323.61/531,853.55 = 224,209.89/x
  3. Step 3: Cross multiply
    385,323.61x = 531,853.55 × 224,209.89
  4. Step 4: Simplify right side
    385,323.61x = 119,246,825,941.61
  5. Step 5: Solve for x
    x = 119,246,825,941.61/385,323.61
  6. Step 6: Final answer
    x = 309,471.89

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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.