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Finding the Fourth Proportional to 306,001.60, 459,002.40 and 299,780.80

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Solution

The fourth proportional to 306,001.60, 459,002.40 and 299,780.80 is: 449,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,001.60 : 459,002.40 = 299,780.80 : x
  2. Step 2: Convert to fraction form
    306,001.60/459,002.40 = 299,780.80/x
  3. Step 3: Cross multiply
    306,001.60x = 459,002.40 × 299,780.80
  4. Step 4: Simplify right side
    306,001.60x = 137,600,106,673.92
  5. Step 5: Solve for x
    x = 137,600,106,673.92/306,001.60
  6. Step 6: Final answer
    x = 449,671.20

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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.