Home / 320,300.53-442,082.31-266,533.13

Finding the Fourth Proportional to 320,300.53, 442,082.31 and 266,533.13

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Solution

The fourth proportional to 320,300.53, 442,082.31 and 266,533.13 is: 367,871.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,300.53 : 442,082.31 = 266,533.13 : x
  2. Step 2: Convert to fraction form
    320,300.53/442,082.31 = 266,533.13/x
  3. Step 3: Cross multiply
    320,300.53x = 442,082.31 × 266,533.13
  4. Step 4: Simplify right side
    320,300.53x = 117,829,581,907.64
  5. Step 5: Solve for x
    x = 117,829,581,907.64/320,300.53
  6. Step 6: Final answer
    x = 367,871.96

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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.