Home / 251,686.16-347,319.92-142,810.32

Finding the Fourth Proportional to 251,686.16, 347,319.92 and 142,810.32

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Solution

The fourth proportional to 251,686.16, 347,319.92 and 142,810.32 is: 197,074.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,686.16 : 347,319.92 = 142,810.32 : x
  2. Step 2: Convert to fraction form
    251,686.16/347,319.92 = 142,810.32/x
  3. Step 3: Cross multiply
    251,686.16x = 347,319.92 × 142,810.32
  4. Step 4: Simplify right side
    251,686.16x = 49,600,868,917.57
  5. Step 5: Solve for x
    x = 49,600,868,917.57/251,686.16
  6. Step 6: Final answer
    x = 197,074.28

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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.