Home / 238,143.32-328,642.02-130,723.34

Finding the Fourth Proportional to 238,143.32, 328,642.02 and 130,723.34

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Solution

The fourth proportional to 238,143.32, 328,642.02 and 130,723.34 is: 180,400.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,143.32 : 328,642.02 = 130,723.34 : x
  2. Step 2: Convert to fraction form
    238,143.32/328,642.02 = 130,723.34/x
  3. Step 3: Cross multiply
    238,143.32x = 328,642.02 × 130,723.34
  4. Step 4: Simplify right side
    238,143.32x = 42,961,182,518.75
  5. Step 5: Solve for x
    x = 42,961,182,518.75/238,143.32
  6. Step 6: Final answer
    x = 180,400.54

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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.