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Finding the Fourth Proportional to 418,058.34, 577,004.52 and 248,259.66

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Solution

The fourth proportional to 418,058.34, 577,004.52 and 248,259.66 is: 342,648.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,058.34 : 577,004.52 = 248,259.66 : x
  2. Step 2: Convert to fraction form
    418,058.34/577,004.52 = 248,259.66/x
  3. Step 3: Cross multiply
    418,058.34x = 577,004.52 × 248,259.66
  4. Step 4: Simplify right side
    418,058.34x = 143,246,945,953.66
  5. Step 5: Solve for x
    x = 143,246,945,953.66/418,058.34
  6. Step 6: Final answer
    x = 342,648.22

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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.