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Finding the Fourth Proportional to 377,477.47, 520,918.88 and 207,711.59

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Solution

The fourth proportional to 377,477.47, 520,918.88 and 207,711.59 is: 286,641.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,477.47 : 520,918.88 = 207,711.59 : x
  2. Step 2: Convert to fraction form
    377,477.47/520,918.88 = 207,711.59/x
  3. Step 3: Cross multiply
    377,477.47x = 520,918.88 × 207,711.59
  4. Step 4: Simplify right side
    377,477.47x = 108,200,889,281.21
  5. Step 5: Solve for x
    x = 108,200,889,281.21/377,477.47
  6. Step 6: Final answer
    x = 286,641.98

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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.