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Finding the Fourth Proportional to 255,973, 353,242.74 and 142,795.72

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Solution

The fourth proportional to 255,973, 353,242.74 and 142,795.72 is: 197,058.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,973 : 353,242.74 = 142,795.72 : x
  2. Step 2: Convert to fraction form
    255,973/353,242.74 = 142,795.72/x
  3. Step 3: Cross multiply
    255,973x = 353,242.74 × 142,795.72
  4. Step 4: Simplify right side
    255,973x = 50,441,551,393.07
  5. Step 5: Solve for x
    x = 50,441,551,393.07/255,973
  6. Step 6: Final answer
    x = 197,058.09

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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.