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Finding the Fourth Proportional to 317,245.61, 437,903.61 and 283,615.35

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Solution

The fourth proportional to 317,245.61, 437,903.61 and 283,615.35 is: 391,482.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,245.61 : 437,903.61 = 283,615.35 : x
  2. Step 2: Convert to fraction form
    317,245.61/437,903.61 = 283,615.35/x
  3. Step 3: Cross multiply
    317,245.61x = 437,903.61 × 283,615.35
  4. Step 4: Simplify right side
    317,245.61x = 124,196,185,616.41
  5. Step 5: Solve for x
    x = 124,196,185,616.41/317,245.61
  6. Step 6: Final answer
    x = 391,482.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.