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Finding the Fourth Proportional to 248,054.90, 372,130.95 and 105,899.90

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Solution

The fourth proportional to 248,054.90, 372,130.95 and 105,899.90 is: 158,870.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,054.90 : 372,130.95 = 105,899.90 : x
  2. Step 2: Convert to fraction form
    248,054.90/372,130.95 = 105,899.90/x
  3. Step 3: Cross multiply
    248,054.90x = 372,130.95 × 105,899.90
  4. Step 4: Simplify right side
    248,054.90x = 39,408,630,391.91
  5. Step 5: Solve for x
    x = 39,408,630,391.91/248,054.90
  6. Step 6: Final answer
    x = 158,870.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.