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Finding the Fourth Proportional to 299,293.60, 449,458.80 and 289,962.40

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Solution

The fourth proportional to 299,293.60, 449,458.80 and 289,962.40 is: 435,445.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,293.60 : 449,458.80 = 289,962.40 : x
  2. Step 2: Convert to fraction form
    299,293.60/449,458.80 = 289,962.40/x
  3. Step 3: Cross multiply
    299,293.60x = 449,458.80 × 289,962.40
  4. Step 4: Simplify right side
    299,293.60x = 130,326,152,349.12
  5. Step 5: Solve for x
    x = 130,326,152,349.12/299,293.60
  6. Step 6: Final answer
    x = 435,445.84

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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.