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Finding the Fourth Proportional to 415,496.42, 573,429.14 and 243,558.87

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Solution

The fourth proportional to 415,496.42, 573,429.14 and 243,558.87 is: 336,137.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,496.42 : 573,429.14 = 243,558.87 : x
  2. Step 2: Convert to fraction form
    415,496.42/573,429.14 = 243,558.87/x
  3. Step 3: Cross multiply
    415,496.42x = 573,429.14 × 243,558.87
  4. Step 4: Simplify right side
    415,496.42x = 139,663,753,363.47
  5. Step 5: Solve for x
    x = 139,663,753,363.47/415,496.42
  6. Step 6: Final answer
    x = 336,137.08

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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.