Home / 380,512.62-525,106.26-210,746.70

Finding the Fourth Proportional to 380,512.62, 525,106.26 and 210,746.70

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Solution

The fourth proportional to 380,512.62, 525,106.26 and 210,746.70 is: 290,829.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,512.62 : 525,106.26 = 210,746.70 : x
  2. Step 2: Convert to fraction form
    380,512.62/525,106.26 = 210,746.70/x
  3. Step 3: Cross multiply
    380,512.62x = 525,106.26 × 210,746.70
  4. Step 4: Simplify right side
    380,512.62x = 110,664,411,444.34
  5. Step 5: Solve for x
    x = 110,664,411,444.34/380,512.62
  6. Step 6: Final answer
    x = 290,829.81

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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.