Home / 380,895.42-525,632.32-208,810.25

Finding the Fourth Proportional to 380,895.42, 525,632.32 and 208,810.25

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Solution

The fourth proportional to 380,895.42, 525,632.32 and 208,810.25 is: 288,156.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,895.42 : 525,632.32 = 208,810.25 : x
  2. Step 2: Convert to fraction form
    380,895.42/525,632.32 = 208,810.25/x
  3. Step 3: Cross multiply
    380,895.42x = 525,632.32 × 208,810.25
  4. Step 4: Simplify right side
    380,895.42x = 109,757,416,055.04
  5. Step 5: Solve for x
    x = 109,757,416,055.04/380,895.42
  6. Step 6: Final answer
    x = 288,156.31

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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.