Home / 389,045.09-536,871.53-216,968.29

Finding the Fourth Proportional to 389,045.09, 536,871.53 and 216,968.29

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Solution

The fourth proportional to 389,045.09, 536,871.53 and 216,968.29 is: 299,410.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,045.09 : 536,871.53 = 216,968.29 : x
  2. Step 2: Convert to fraction form
    389,045.09/536,871.53 = 216,968.29/x
  3. Step 3: Cross multiply
    389,045.09x = 536,871.53 × 216,968.29
  4. Step 4: Simplify right side
    389,045.09x = 116,484,095,129.43
  5. Step 5: Solve for x
    x = 116,484,095,129.43/389,045.09
  6. Step 6: Final answer
    x = 299,410.27

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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.