Home / 380,315.76-524,815.77-208,200.75

Finding the Fourth Proportional to 380,315.76, 524,815.77 and 208,200.75

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Solution

The fourth proportional to 380,315.76, 524,815.77 and 208,200.75 is: 287,306.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,315.76 : 524,815.77 = 208,200.75 : x
  2. Step 2: Convert to fraction form
    380,315.76/524,815.77 = 208,200.75/x
  3. Step 3: Cross multiply
    380,315.76x = 524,815.77 × 208,200.75
  4. Step 4: Simplify right side
    380,315.76x = 109,267,036,925.83
  5. Step 5: Solve for x
    x = 109,267,036,925.83/380,315.76
  6. Step 6: Final answer
    x = 287,306.10

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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.