Home / 346,565.21-518,665.01-290,468.66

Finding the Fourth Proportional to 346,565.21, 518,665.01 and 290,468.66

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Solution

The fourth proportional to 346,565.21, 518,665.01 and 290,468.66 is: 434,711.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,565.21 : 518,665.01 = 290,468.66 : x
  2. Step 2: Convert to fraction form
    346,565.21/518,665.01 = 290,468.66/x
  3. Step 3: Cross multiply
    346,565.21x = 518,665.01 × 290,468.66
  4. Step 4: Simplify right side
    346,565.21x = 150,655,930,443.59
  5. Step 5: Solve for x
    x = 150,655,930,443.59/346,565.21
  6. Step 6: Final answer
    x = 434,711.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.