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Finding the Fourth Proportional to 377,807.50, 521,374.36 and 208,041.22

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Solution

The fourth proportional to 377,807.50, 521,374.36 and 208,041.22 is: 287,096.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,807.50 : 521,374.36 = 208,041.22 : x
  2. Step 2: Convert to fraction form
    377,807.50/521,374.36 = 208,041.22/x
  3. Step 3: Cross multiply
    377,807.50x = 521,374.36 × 208,041.22
  4. Step 4: Simplify right side
    377,807.50x = 108,467,357,931.12
  5. Step 5: Solve for x
    x = 108,467,357,931.12/377,807.50
  6. Step 6: Final answer
    x = 287,096.89

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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.