Home / 258,319.29-356,484.87-142,037.64

Finding the Fourth Proportional to 258,319.29, 356,484.87 and 142,037.64

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Solution

The fourth proportional to 258,319.29, 356,484.87 and 142,037.64 is: 196,014.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,319.29 : 356,484.87 = 142,037.64 : x
  2. Step 2: Convert to fraction form
    258,319.29/356,484.87 = 142,037.64/x
  3. Step 3: Cross multiply
    258,319.29x = 356,484.87 × 142,037.64
  4. Step 4: Simplify right side
    258,319.29x = 50,634,269,630.51
  5. Step 5: Solve for x
    x = 50,634,269,630.51/258,319.29
  6. Step 6: Final answer
    x = 196,014.28

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1.5x scale

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.