Home / 421,500.35-581,678.97-230,526.02

Finding the Fourth Proportional to 421,500.35, 581,678.97 and 230,526.02

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Solution

The fourth proportional to 421,500.35, 581,678.97 and 230,526.02 is: 318,130.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,500.35 : 581,678.97 = 230,526.02 : x
  2. Step 2: Convert to fraction form
    421,500.35/581,678.97 = 230,526.02/x
  3. Step 3: Cross multiply
    421,500.35x = 581,678.97 × 230,526.02
  4. Step 4: Simplify right side
    421,500.35x = 134,092,137,871.80
  5. Step 5: Solve for x
    x = 134,092,137,871.80/421,500.35
  6. Step 6: Final answer
    x = 318,130.55

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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.