Home / 282,977.45-390,497.57-153,916.03

Finding the Fourth Proportional to 282,977.45, 390,497.57 and 153,916.03

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Solution

The fourth proportional to 282,977.45, 390,497.57 and 153,916.03 is: 212,397.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,977.45 : 390,497.57 = 153,916.03 : x
  2. Step 2: Convert to fraction form
    282,977.45/390,497.57 = 153,916.03/x
  3. Step 3: Cross multiply
    282,977.45x = 390,497.57 × 153,916.03
  4. Step 4: Simplify right side
    282,977.45x = 60,103,833,746.56
  5. Step 5: Solve for x
    x = 60,103,833,746.56/282,977.45
  6. Step 6: Final answer
    x = 212,397.97

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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.