Home / 389,045.21-536,871.69-216,968.41

Finding the Fourth Proportional to 389,045.21, 536,871.69 and 216,968.41

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Solution

The fourth proportional to 389,045.21, 536,871.69 and 216,968.41 is: 299,410.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,045.21 : 536,871.69 = 216,968.41 : x
  2. Step 2: Convert to fraction form
    389,045.21/536,871.69 = 216,968.41/x
  3. Step 3: Cross multiply
    389,045.21x = 536,871.69 × 216,968.41
  4. Step 4: Simplify right side
    389,045.21x = 116,484,196,953.31
  5. Step 5: Solve for x
    x = 116,484,196,953.31/389,045.21
  6. Step 6: Final answer
    x = 299,410.44

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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.