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Finding the Fourth Proportional to 189,242.40, 283,864.71 and 56,123.76

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Solution

The fourth proportional to 189,242.40, 283,864.71 and 56,123.76 is: 84,185.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,242.40 : 283,864.71 = 56,123.76 : x
  2. Step 2: Convert to fraction form
    189,242.40/283,864.71 = 56,123.76/x
  3. Step 3: Cross multiply
    189,242.40x = 283,864.71 × 56,123.76
  4. Step 4: Simplify right side
    189,242.40x = 15,931,554,856.51
  5. Step 5: Solve for x
    x = 15,931,554,856.51/189,242.40
  6. Step 6: Final answer
    x = 84,185.97

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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.