Home / 380,397.12-524,936.16-208,307.52

Finding the Fourth Proportional to 380,397.12, 524,936.16 and 208,307.52

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Solution

The fourth proportional to 380,397.12, 524,936.16 and 208,307.52 is: 287,457.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,397.12 : 524,936.16 = 208,307.52 : x
  2. Step 2: Convert to fraction form
    380,397.12/524,936.16 = 208,307.52/x
  3. Step 3: Cross multiply
    380,397.12x = 524,936.16 × 208,307.52
  4. Step 4: Simplify right side
    380,397.12x = 109,348,149,647.92
  5. Step 5: Solve for x
    x = 109,348,149,647.92/380,397.12
  6. Step 6: Final answer
    x = 287,457.88

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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.