Home / 348,977.16-522,432.38-215,428.01

Finding the Fourth Proportional to 348,977.16, 522,432.38 and 215,428.01

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Solution

The fourth proportional to 348,977.16, 522,432.38 and 215,428.01 is: 322,504.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,977.16 : 522,432.38 = 215,428.01 : x
  2. Step 2: Convert to fraction form
    348,977.16/522,432.38 = 215,428.01/x
  3. Step 3: Cross multiply
    348,977.16x = 522,432.38 × 215,428.01
  4. Step 4: Simplify right side
    348,977.16x = 112,546,565,909.37
  5. Step 5: Solve for x
    x = 112,546,565,909.37/348,977.16
  6. Step 6: Final answer
    x = 322,504.10

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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.