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Finding the Fourth Proportional to 368,752.87, 508,888.53 and 207,613.78

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Solution

The fourth proportional to 368,752.87, 508,888.53 and 207,613.78 is: 286,512.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,752.87 : 508,888.53 = 207,613.78 : x
  2. Step 2: Convert to fraction form
    368,752.87/508,888.53 = 207,613.78/x
  3. Step 3: Cross multiply
    368,752.87x = 508,888.53 × 207,613.78
  4. Step 4: Simplify right side
    368,752.87x = 105,652,271,311.94
  5. Step 5: Solve for x
    x = 105,652,271,311.94/368,752.87
  6. Step 6: Final answer
    x = 286,512.40

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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.