Home / 208,297.47-287,450.07-112,803.87

Finding the Fourth Proportional to 208,297.47, 287,450.07 and 112,803.87

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Solution

The fourth proportional to 208,297.47, 287,450.07 and 112,803.87 is: 155,669.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,297.47 : 287,450.07 = 112,803.87 : x
  2. Step 2: Convert to fraction form
    208,297.47/287,450.07 = 112,803.87/x
  3. Step 3: Cross multiply
    208,297.47x = 287,450.07 × 112,803.87
  4. Step 4: Simplify right side
    208,297.47x = 32,425,480,327.77
  5. Step 5: Solve for x
    x = 32,425,480,327.77/208,297.47
  6. Step 6: Final answer
    x = 155,669.10

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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.