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Finding the Fourth Proportional to 445,931.87, 615,210.80 and 254,842.74

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Solution

The fourth proportional to 445,931.87, 615,210.80 and 254,842.74 is: 351,582.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,931.87 : 615,210.80 = 254,842.74 : x
  2. Step 2: Convert to fraction form
    445,931.87/615,210.80 = 254,842.74/x
  3. Step 3: Cross multiply
    445,931.87x = 615,210.80 × 254,842.74
  4. Step 4: Simplify right side
    445,931.87x = 156,782,004,675.38
  5. Step 5: Solve for x
    x = 156,782,004,675.38/445,931.87
  6. Step 6: Final answer
    x = 351,582.87

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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.