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Finding the Fourth Proportional to 555,101.69, 766,058.90 and 340,200.23

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Solution

The fourth proportional to 555,101.69, 766,058.90 and 340,200.23 is: 469,487.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,101.69 : 766,058.90 = 340,200.23 : x
  2. Step 2: Convert to fraction form
    555,101.69/766,058.90 = 340,200.23/x
  3. Step 3: Cross multiply
    555,101.69x = 766,058.90 × 340,200.23
  4. Step 4: Simplify right side
    555,101.69x = 260,613,408,442.25
  5. Step 5: Solve for x
    x = 260,613,408,442.25/555,101.69
  6. Step 6: Final answer
    x = 469,487.69

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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.