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Finding the Fourth Proportional to 354,804.40, 532,206.60 and 291,818.80

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Solution

The fourth proportional to 354,804.40, 532,206.60 and 291,818.80 is: 437,728.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,804.40 : 532,206.60 = 291,818.80 : x
  2. Step 2: Convert to fraction form
    354,804.40/532,206.60 = 291,818.80/x
  3. Step 3: Cross multiply
    354,804.40x = 532,206.60 × 291,818.80
  4. Step 4: Simplify right side
    354,804.40x = 155,307,891,364.08
  5. Step 5: Solve for x
    x = 155,307,891,364.08/354,804.40
  6. Step 6: Final answer
    x = 437,728.20

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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.