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Finding the Fourth Proportional to 377,055.40, 520,323.18 and 207,288.28

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Solution

The fourth proportional to 377,055.40, 520,323.18 and 207,288.28 is: 286,050.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,055.40 : 520,323.18 = 207,288.28 : x
  2. Step 2: Convert to fraction form
    377,055.40/520,323.18 = 207,288.28/x
  3. Step 3: Cross multiply
    377,055.40x = 520,323.18 × 207,288.28
  4. Step 4: Simplify right side
    377,055.40x = 107,856,897,026.33
  5. Step 5: Solve for x
    x = 107,856,897,026.33/377,055.40
  6. Step 6: Final answer
    x = 286,050.53

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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.