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Finding the Fourth Proportional to 366,864.81, 506,278.65 and 221,650.40

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Solution

The fourth proportional to 366,864.81, 506,278.65 and 221,650.40 is: 305,880.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,864.81 : 506,278.65 = 221,650.40 : x
  2. Step 2: Convert to fraction form
    366,864.81/506,278.65 = 221,650.40/x
  3. Step 3: Cross multiply
    366,864.81x = 506,278.65 × 221,650.40
  4. Step 4: Simplify right side
    366,864.81x = 112,216,865,956.94
  5. Step 5: Solve for x
    x = 112,216,865,956.94/366,864.81
  6. Step 6: Final answer
    x = 305,880.70

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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.