Home / 438,082.60-657,075.30-122,571.40

Finding the Fourth Proportional to 438,082.60, 657,075.30 and 122,571.40

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Solution

The fourth proportional to 438,082.60, 657,075.30 and 122,571.40 is: 183,843.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,082.60 : 657,075.30 = 122,571.40 : x
  2. Step 2: Convert to fraction form
    438,082.60/657,075.30 = 122,571.40/x
  3. Step 3: Cross multiply
    438,082.60x = 657,075.30 × 122,571.40
  4. Step 4: Simplify right side
    438,082.60x = 80,538,639,426.42
  5. Step 5: Solve for x
    x = 80,538,639,426.42/438,082.60
  6. Step 6: Final answer
    x = 183,843.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.