Home / 282,736.40-390,176.08-155,411.96

Finding the Fourth Proportional to 282,736.40, 390,176.08 and 155,411.96

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Solution

The fourth proportional to 282,736.40, 390,176.08 and 155,411.96 is: 214,468.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,736.40 : 390,176.08 = 155,411.96 : x
  2. Step 2: Convert to fraction form
    282,736.40/390,176.08 = 155,411.96/x
  3. Step 3: Cross multiply
    282,736.40x = 390,176.08 × 155,411.96
  4. Step 4: Simplify right side
    282,736.40x = 60,638,029,337.92
  5. Step 5: Solve for x
    x = 60,638,029,337.92/282,736.40
  6. Step 6: Final answer
    x = 214,468.42

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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.