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Finding the Fourth Proportional to 299,237.80, 448,468.92 and 121,538.40

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Solution

The fourth proportional to 299,237.80, 448,468.92 and 121,538.40 is: 182,150.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,237.80 : 448,468.92 = 121,538.40 : x
  2. Step 2: Convert to fraction form
    299,237.80/448,468.92 = 121,538.40/x
  3. Step 3: Cross multiply
    299,237.80x = 448,468.92 × 121,538.40
  4. Step 4: Simplify right side
    299,237.80x = 54,506,194,986.53
  5. Step 5: Solve for x
    x = 54,506,194,986.53/299,237.80
  6. Step 6: Final answer
    x = 182,150.10

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1.5x scale

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.