Home / 380,345.48-524,876.80-208,274.30

Finding the Fourth Proportional to 380,345.48, 524,876.80 and 208,274.30

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Solution

The fourth proportional to 380,345.48, 524,876.80 and 208,274.30 is: 287,418.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,345.48 : 524,876.80 = 208,274.30 : x
  2. Step 2: Convert to fraction form
    380,345.48/524,876.80 = 208,274.30/x
  3. Step 3: Cross multiply
    380,345.48x = 524,876.80 × 208,274.30
  4. Step 4: Simplify right side
    380,345.48x = 109,318,348,106.24
  5. Step 5: Solve for x
    x = 109,318,348,106.24/380,345.48
  6. Step 6: Final answer
    x = 287,418.55

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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.