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Finding the Fourth Proportional to 277,390.32, 416,128.68 and 90,358.32

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Solution

The fourth proportional to 277,390.32, 416,128.68 and 90,358.32 is: 135,551.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,390.32 : 416,128.68 = 90,358.32 : x
  2. Step 2: Convert to fraction form
    277,390.32/416,128.68 = 90,358.32/x
  3. Step 3: Cross multiply
    277,390.32x = 416,128.68 × 90,358.32
  4. Step 4: Simplify right side
    277,390.32x = 37,600,688,428.62
  5. Step 5: Solve for x
    x = 37,600,688,428.62/277,390.32
  6. Step 6: Final answer
    x = 135,551.55

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1.5x scale

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.