Home / 238,400.64-328,993.01-130,977.59

Finding the Fourth Proportional to 238,400.64, 328,993.01 and 130,977.59

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Solution

The fourth proportional to 238,400.64, 328,993.01 and 130,977.59 is: 180,749.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,400.64 : 328,993.01 = 130,977.59 : x
  2. Step 2: Convert to fraction form
    238,400.64/328,993.01 = 130,977.59/x
  3. Step 3: Cross multiply
    238,400.64x = 328,993.01 × 130,977.59
  4. Step 4: Simplify right side
    238,400.64x = 43,090,709,276.79
  5. Step 5: Solve for x
    x = 43,090,709,276.79/238,400.64
  6. Step 6: Final answer
    x = 180,749.13

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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.