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Finding the Fourth Proportional to 418,295.18, 577,331.16 and 248,496.50

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Solution

The fourth proportional to 418,295.18, 577,331.16 and 248,496.50 is: 342,974.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,295.18 : 577,331.16 = 248,496.50 : x
  2. Step 2: Convert to fraction form
    418,295.18/577,331.16 = 248,496.50/x
  3. Step 3: Cross multiply
    418,295.18x = 577,331.16 × 248,496.50
  4. Step 4: Simplify right side
    418,295.18x = 143,464,772,600.94
  5. Step 5: Solve for x
    x = 143,464,772,600.94/418,295.18
  6. Step 6: Final answer
    x = 342,974.96

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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.