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Finding the Fourth Proportional to 242,551.98, 334,701.85 and 139,190.72

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Solution

The fourth proportional to 242,551.98, 334,701.85 and 139,190.72 is: 192,071.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,551.98 : 334,701.85 = 139,190.72 : x
  2. Step 2: Convert to fraction form
    242,551.98/334,701.85 = 139,190.72/x
  3. Step 3: Cross multiply
    242,551.98x = 334,701.85 × 139,190.72
  4. Step 4: Simplify right side
    242,551.98x = 46,587,391,486.83
  5. Step 5: Solve for x
    x = 46,587,391,486.83/242,551.98
  6. Step 6: Final answer
    x = 192,071.78

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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.