Home / 380,501.40-525,087.72-210,735.12

Finding the Fourth Proportional to 380,501.40, 525,087.72 and 210,735.12

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Solution

The fourth proportional to 380,501.40, 525,087.72 and 210,735.12 is: 290,812.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,501.40 : 525,087.72 = 210,735.12 : x
  2. Step 2: Convert to fraction form
    380,501.40/525,087.72 = 210,735.12/x
  3. Step 3: Cross multiply
    380,501.40x = 525,087.72 × 210,735.12
  4. Step 4: Simplify right side
    380,501.40x = 110,654,423,684.73
  5. Step 5: Solve for x
    x = 110,654,423,684.73/380,501.40
  6. Step 6: Final answer
    x = 290,812.13

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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.