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Finding the Fourth Proportional to 443,506.86, 612,039.42 and 242,302.86

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Solution

The fourth proportional to 443,506.86, 612,039.42 and 242,302.86 is: 334,377.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,506.86 : 612,039.42 = 242,302.86 : x
  2. Step 2: Convert to fraction form
    443,506.86/612,039.42 = 242,302.86/x
  3. Step 3: Cross multiply
    443,506.86x = 612,039.42 × 242,302.86
  4. Step 4: Simplify right side
    443,506.86x = 148,298,901,898.74
  5. Step 5: Solve for x
    x = 148,298,901,898.74/443,506.86
  6. Step 6: Final answer
    x = 334,377.92

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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.