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Finding the Fourth Proportional to 180,312.83, 248,828.62 and 99,740.28

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Solution

The fourth proportional to 180,312.83, 248,828.62 and 99,740.28 is: 137,639.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,312.83 : 248,828.62 = 99,740.28 : x
  2. Step 2: Convert to fraction form
    180,312.83/248,828.62 = 99,740.28/x
  3. Step 3: Cross multiply
    180,312.83x = 248,828.62 × 99,740.28
  4. Step 4: Simplify right side
    180,312.83x = 24,818,236,230.81
  5. Step 5: Solve for x
    x = 24,818,236,230.81/180,312.83
  6. Step 6: Final answer
    x = 137,639.88

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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.