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Finding the Fourth Proportional to 354,599.79, 531,714.85 and 126,807.56

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Solution

The fourth proportional to 354,599.79, 531,714.85 and 126,807.56 is: 190,145.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,599.79 : 531,714.85 = 126,807.56 : x
  2. Step 2: Convert to fraction form
    354,599.79/531,714.85 = 126,807.56/x
  3. Step 3: Cross multiply
    354,599.79x = 531,714.85 × 126,807.56
  4. Step 4: Simplify right side
    354,599.79x = 67,425,461,762.60
  5. Step 5: Solve for x
    x = 67,425,461,762.60/354,599.79
  6. Step 6: Final answer
    x = 190,145.24

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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.