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Finding the Fourth Proportional to 366,888.60, 550,332.90 and 278,315.10

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Solution

The fourth proportional to 366,888.60, 550,332.90 and 278,315.10 is: 417,472.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,888.60 : 550,332.90 = 278,315.10 : x
  2. Step 2: Convert to fraction form
    366,888.60/550,332.90 = 278,315.10/x
  3. Step 3: Cross multiply
    366,888.60x = 550,332.90 × 278,315.10
  4. Step 4: Simplify right side
    366,888.60x = 153,165,956,096.79
  5. Step 5: Solve for x
    x = 153,165,956,096.79/366,888.60
  6. Step 6: Final answer
    x = 417,472.65

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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.