Home / 287,899.94-397,302.48-160,583.78

Finding the Fourth Proportional to 287,899.94, 397,302.48 and 160,583.78

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Solution

The fourth proportional to 287,899.94, 397,302.48 and 160,583.78 is: 221,605.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,899.94 : 397,302.48 = 160,583.78 : x
  2. Step 2: Convert to fraction form
    287,899.94/397,302.48 = 160,583.78/x
  3. Step 3: Cross multiply
    287,899.94x = 397,302.48 × 160,583.78
  4. Step 4: Simplify right side
    287,899.94x = 63,800,334,041.77
  5. Step 5: Solve for x
    x = 63,800,334,041.77/287,899.94
  6. Step 6: Final answer
    x = 221,605.93

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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.