Home / 378,461.16-522,280.31-208,701.36

Finding the Fourth Proportional to 378,461.16, 522,280.31 and 208,701.36

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Solution

The fourth proportional to 378,461.16, 522,280.31 and 208,701.36 is: 288,010.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,461.16 : 522,280.31 = 208,701.36 : x
  2. Step 2: Convert to fraction form
    378,461.16/522,280.31 = 208,701.36/x
  3. Step 3: Cross multiply
    378,461.16x = 522,280.31 × 208,701.36
  4. Step 4: Simplify right side
    378,461.16x = 109,000,609,954.72
  5. Step 5: Solve for x
    x = 109,000,609,954.72/378,461.16
  6. Step 6: Final answer
    x = 288,010.03

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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.