Home / 257,166.78-354,895.48-153,907.72

Finding the Fourth Proportional to 257,166.78, 354,895.48 and 153,907.72

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Solution

The fourth proportional to 257,166.78, 354,895.48 and 153,907.72 is: 212,395.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,166.78 : 354,895.48 = 153,907.72 : x
  2. Step 2: Convert to fraction form
    257,166.78/354,895.48 = 153,907.72/x
  3. Step 3: Cross multiply
    257,166.78x = 354,895.48 × 153,907.72
  4. Step 4: Simplify right side
    257,166.78x = 54,621,154,165.11
  5. Step 5: Solve for x
    x = 54,621,154,165.11/257,166.78
  6. Step 6: Final answer
    x = 212,395.84

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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.