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Finding the Fourth Proportional to 180,319.49, 248,840.87 and 98,648.40

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Solution

The fourth proportional to 180,319.49, 248,840.87 and 98,648.40 is: 136,134.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,319.49 : 248,840.87 = 98,648.40 : x
  2. Step 2: Convert to fraction form
    180,319.49/248,840.87 = 98,648.40/x
  3. Step 3: Cross multiply
    180,319.49x = 248,840.87 × 98,648.40
  4. Step 4: Simplify right side
    180,319.49x = 24,547,753,186.87
  5. Step 5: Solve for x
    x = 24,547,753,186.87/180,319.49
  6. Step 6: Final answer
    x = 136,134.78

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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.