Home / 380,281.12-524,794.12-208,196.20

Finding the Fourth Proportional to 380,281.12, 524,794.12 and 208,196.20

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Solution

The fourth proportional to 380,281.12, 524,794.12 and 208,196.20 is: 287,314.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,281.12 : 524,794.12 = 208,196.20 : x
  2. Step 2: Convert to fraction form
    380,281.12/524,794.12 = 208,196.20/x
  3. Step 3: Cross multiply
    380,281.12x = 524,794.12 × 208,196.20
  4. Step 4: Simplify right side
    380,281.12x = 109,260,141,566.34
  5. Step 5: Solve for x
    x = 109,260,141,566.34/380,281.12
  6. Step 6: Final answer
    x = 287,314.14

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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.