Home / 238,075.28-328,548.84-130,639.04

Finding the Fourth Proportional to 238,075.28, 328,548.84 and 130,639.04

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Solution

The fourth proportional to 238,075.28, 328,548.84 and 130,639.04 is: 180,284.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,075.28 : 328,548.84 = 130,639.04 : x
  2. Step 2: Convert to fraction form
    238,075.28/328,548.84 = 130,639.04/x
  3. Step 3: Cross multiply
    238,075.28x = 328,548.84 × 130,639.04
  4. Step 4: Simplify right side
    238,075.28x = 42,921,305,050.71
  5. Step 5: Solve for x
    x = 42,921,305,050.71/238,075.28
  6. Step 6: Final answer
    x = 180,284.59

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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.