Home / 282,902.10-390,397.10-155,577.69

Finding the Fourth Proportional to 282,902.10, 390,397.10 and 155,577.69

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Solution

The fourth proportional to 282,902.10, 390,397.10 and 155,577.69 is: 214,692.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,902.10 : 390,397.10 = 155,577.69 : x
  2. Step 2: Convert to fraction form
    282,902.10/390,397.10 = 155,577.69/x
  3. Step 3: Cross multiply
    282,902.10x = 390,397.10 × 155,577.69
  4. Step 4: Simplify right side
    282,902.10x = 60,737,079,389.64
  5. Step 5: Solve for x
    x = 60,737,079,389.64/282,902.10
  6. Step 6: Final answer
    x = 214,692.93

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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.