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Finding the Fourth Proportional to 377,549.28, 521,007.12 and 207,779.76

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Solution

The fourth proportional to 377,549.28, 521,007.12 and 207,779.76 is: 286,730.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,549.28 : 521,007.12 = 207,779.76 : x
  2. Step 2: Convert to fraction form
    377,549.28/521,007.12 = 207,779.76/x
  3. Step 3: Cross multiply
    377,549.28x = 521,007.12 × 207,779.76
  4. Step 4: Simplify right side
    377,549.28x = 108,254,734,351.89
  5. Step 5: Solve for x
    x = 108,254,734,351.89/377,549.28
  6. Step 6: Final answer
    x = 286,730.08

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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.