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Finding the Fourth Proportional to 377,203.47, 520,530.41 and 207,437.60

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Solution

The fourth proportional to 377,203.47, 520,530.41 and 207,437.60 is: 286,258.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,203.47 : 520,530.41 = 207,437.60 : x
  2. Step 2: Convert to fraction form
    377,203.47/520,530.41 = 207,437.60/x
  3. Step 3: Cross multiply
    377,203.47x = 520,530.41 × 207,437.60
  4. Step 4: Simplify right side
    377,203.47x = 107,977,575,337.58
  5. Step 5: Solve for x
    x = 107,977,575,337.58/377,203.47
  6. Step 6: Final answer
    x = 286,258.17

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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.