Home / 282,693.58-390,120.42-155,369.38

Finding the Fourth Proportional to 282,693.58, 390,120.42 and 155,369.38

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Solution

The fourth proportional to 282,693.58, 390,120.42 and 155,369.38 is: 214,411.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,693.58 : 390,120.42 = 155,369.38 : x
  2. Step 2: Convert to fraction form
    282,693.58/390,120.42 = 155,369.38/x
  3. Step 3: Cross multiply
    282,693.58x = 390,120.42 × 155,369.38
  4. Step 4: Simplify right side
    282,693.58x = 60,612,767,780.74
  5. Step 5: Solve for x
    x = 60,612,767,780.74/282,693.58
  6. Step 6: Final answer
    x = 214,411.55

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1.5x scale

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.