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Finding the Fourth Proportional to 354,699.20, 532,048.80 and 310,412.45

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Solution

The fourth proportional to 354,699.20, 532,048.80 and 310,412.45 is: 465,618.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,699.20 : 532,048.80 = 310,412.45 : x
  2. Step 2: Convert to fraction form
    354,699.20/532,048.80 = 310,412.45/x
  3. Step 3: Cross multiply
    354,699.20x = 532,048.80 × 310,412.45
  4. Step 4: Simplify right side
    354,699.20x = 165,154,571,527.56
  5. Step 5: Solve for x
    x = 165,154,571,527.56/354,699.20
  6. Step 6: Final answer
    x = 465,618.68

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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.