Home / 380,628.29-525,228.77-210,830.69

Finding the Fourth Proportional to 380,628.29, 525,228.77 and 210,830.69

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Solution

The fourth proportional to 380,628.29, 525,228.77 and 210,830.69 is: 290,925.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,628.29 : 525,228.77 = 210,830.69 : x
  2. Step 2: Convert to fraction form
    380,628.29/525,228.77 = 210,830.69/x
  3. Step 3: Cross multiply
    380,628.29x = 525,228.77 × 210,830.69
  4. Step 4: Simplify right side
    380,628.29x = 110,734,342,932.80
  5. Step 5: Solve for x
    x = 110,734,342,932.80/380,628.29
  6. Step 6: Final answer
    x = 290,925.15

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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.