Home / 388,900.13-536,682.53-210,052.13

Finding the Fourth Proportional to 388,900.13, 536,682.53 and 210,052.13

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Solution

The fourth proportional to 388,900.13, 536,682.53 and 210,052.13 is: 289,872.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,900.13 : 536,682.53 = 210,052.13 : x
  2. Step 2: Convert to fraction form
    388,900.13/536,682.53 = 210,052.13/x
  3. Step 3: Cross multiply
    388,900.13x = 536,682.53 × 210,052.13
  4. Step 4: Simplify right side
    388,900.13x = 112,731,306,402.01
  5. Step 5: Solve for x
    x = 112,731,306,402.01/388,900.13
  6. Step 6: Final answer
    x = 289,872.13

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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.