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Finding the Fourth Proportional to 189,008.70, 283,221.45 and 163,931.10

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Solution

The fourth proportional to 189,008.70, 283,221.45 and 163,931.10 is: 245,643.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,008.70 : 283,221.45 = 163,931.10 : x
  2. Step 2: Convert to fraction form
    189,008.70/283,221.45 = 163,931.10/x
  3. Step 3: Cross multiply
    189,008.70x = 283,221.45 × 163,931.10
  4. Step 4: Simplify right side
    189,008.70x = 46,428,803,842.10
  5. Step 5: Solve for x
    x = 46,428,803,842.10/189,008.70
  6. Step 6: Final answer
    x = 245,643.74

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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.