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Finding the Fourth Proportional to 318,599.40, 439,663.80 and 175,356.36

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Solution

The fourth proportional to 318,599.40, 439,663.80 and 175,356.36 is: 241,989.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,599.40 : 439,663.80 = 175,356.36 : x
  2. Step 2: Convert to fraction form
    318,599.40/439,663.80 = 175,356.36/x
  3. Step 3: Cross multiply
    318,599.40x = 439,663.80 × 175,356.36
  4. Step 4: Simplify right side
    318,599.40x = 77,097,843,591.77
  5. Step 5: Solve for x
    x = 77,097,843,591.77/318,599.40
  6. Step 6: Final answer
    x = 241,989.92

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1.5x scale

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.