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Finding the Fourth Proportional to 377,038.57, 520,323.15 and 207,276.97

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Solution

The fourth proportional to 377,038.57, 520,323.15 and 207,276.97 is: 286,047.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,038.57 : 520,323.15 = 207,276.97 : x
  2. Step 2: Convert to fraction form
    377,038.57/520,323.15 = 207,276.97/x
  3. Step 3: Cross multiply
    377,038.57x = 520,323.15 × 207,276.97
  4. Step 4: Simplify right side
    377,038.57x = 107,851,003,869.43
  5. Step 5: Solve for x
    x = 107,851,003,869.43/377,038.57
  6. Step 6: Final answer
    x = 286,047.67

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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.