Home / 283,123.20-390,700.08-155,795.52

Finding the Fourth Proportional to 283,123.20, 390,700.08 and 155,795.52

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Solution

The fourth proportional to 283,123.20, 390,700.08 and 155,795.52 is: 214,992.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,123.20 : 390,700.08 = 155,795.52 : x
  2. Step 2: Convert to fraction form
    283,123.20/390,700.08 = 155,795.52/x
  3. Step 3: Cross multiply
    283,123.20x = 390,700.08 × 155,795.52
  4. Step 4: Simplify right side
    283,123.20x = 60,869,322,127.64
  5. Step 5: Solve for x
    x = 60,869,322,127.64/283,123.20
  6. Step 6: Final answer
    x = 214,992.35

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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.